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Finding the Fourth Proportional to 52,292.49, 72,164.70 and 28,420.70

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Solution

The fourth proportional to 52,292.49, 72,164.70 and 28,420.70 is: 39,221.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,292.49 : 72,164.70 = 28,420.70 : x
  2. Step 2: Convert to fraction form
    52,292.49/72,164.70 = 28,420.70/x
  3. Step 3: Cross multiply
    52,292.49x = 72,164.70 × 28,420.70
  4. Step 4: Simplify right side
    52,292.49x = 2,050,971,051.50
  5. Step 5: Solve for x
    x = 2,050,971,051.50/52,292.49
  6. Step 6: Final answer
    x = 39,221.14

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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.