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Finding the Fourth Proportional to 68,666.48, 94,802.56 and 52,719.20

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Solution

The fourth proportional to 68,666.48, 94,802.56 and 52,719.20 is: 72,785.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,666.48 : 94,802.56 = 52,719.20 : x
  2. Step 2: Convert to fraction form
    68,666.48/94,802.56 = 52,719.20/x
  3. Step 3: Cross multiply
    68,666.48x = 94,802.56 × 52,719.20
  4. Step 4: Simplify right side
    68,666.48x = 4,997,915,121.15
  5. Step 5: Solve for x
    x = 4,997,915,121.15/68,666.48
  6. Step 6: Final answer
    x = 72,785.37

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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.