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Finding the Fourth Proportional to 72,354.90, 108,532.35 and 25,601.70

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Solution

The fourth proportional to 72,354.90, 108,532.35 and 25,601.70 is: 38,402.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,354.90 : 108,532.35 = 25,601.70 : x
  2. Step 2: Convert to fraction form
    72,354.90/108,532.35 = 25,601.70/x
  3. Step 3: Cross multiply
    72,354.90x = 108,532.35 × 25,601.70
  4. Step 4: Simplify right side
    72,354.90x = 2,778,612,665.00
  5. Step 5: Solve for x
    x = 2,778,612,665.00/72,354.90
  6. Step 6: Final answer
    x = 38,402.55

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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.