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Finding the Fourth Proportional to 72,337.75, 108,505.51 and 19,747.08

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Solution

The fourth proportional to 72,337.75, 108,505.51 and 19,747.08 is: 29,620.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,337.75 : 108,505.51 = 19,747.08 : x
  2. Step 2: Convert to fraction form
    72,337.75/108,505.51 = 19,747.08/x
  3. Step 3: Cross multiply
    72,337.75x = 108,505.51 × 19,747.08
  4. Step 4: Simplify right side
    72,337.75x = 2,142,666,937.04
  5. Step 5: Solve for x
    x = 2,142,666,937.04/72,337.75
  6. Step 6: Final answer
    x = 29,620.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.