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Finding the Fourth Proportional to 52,662.26, 72,663.76 and 30,000.76

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Solution

The fourth proportional to 52,662.26, 72,663.76 and 30,000.76 is: 41,395.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,662.26 : 72,663.76 = 30,000.76 : x
  2. Step 2: Convert to fraction form
    52,662.26/72,663.76 = 30,000.76/x
  3. Step 3: Cross multiply
    52,662.26x = 72,663.76 × 30,000.76
  4. Step 4: Simplify right side
    52,662.26x = 2,179,968,024.46
  5. Step 5: Solve for x
    x = 2,179,968,024.46/52,662.26
  6. Step 6: Final answer
    x = 41,395.26

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.