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Finding the Fourth Proportional to 72,737.71, 109,156.73 and 25,353.20

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Solution

The fourth proportional to 72,737.71, 109,156.73 and 25,353.20 is: 38,047.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,737.71 : 109,156.73 = 25,353.20 : x
  2. Step 2: Convert to fraction form
    72,737.71/109,156.73 = 25,353.20/x
  3. Step 3: Cross multiply
    72,737.71x = 109,156.73 × 25,353.20
  4. Step 4: Simplify right side
    72,737.71x = 2,767,472,176.84
  5. Step 5: Solve for x
    x = 2,767,472,176.84/72,737.71
  6. Step 6: Final answer
    x = 38,047.28

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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.