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Finding the Fourth Proportional to 72,864.59, 100,557.42 and 44,575.70

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Solution

The fourth proportional to 72,864.59, 100,557.42 and 44,575.70 is: 61,517.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,864.59 : 100,557.42 = 44,575.70 : x
  2. Step 2: Convert to fraction form
    72,864.59/100,557.42 = 44,575.70/x
  3. Step 3: Cross multiply
    72,864.59x = 100,557.42 × 44,575.70
  4. Step 4: Simplify right side
    72,864.59x = 4,482,417,386.69
  5. Step 5: Solve for x
    x = 4,482,417,386.69/72,864.59
  6. Step 6: Final answer
    x = 61,517.09

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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.