Home / 57,476.91-79,318.20-31,985.61

Finding the Fourth Proportional to 57,476.91, 79,318.20 and 31,985.61

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Solution

The fourth proportional to 57,476.91, 79,318.20 and 31,985.61 is: 44,140.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,476.91 : 79,318.20 = 31,985.61 : x
  2. Step 2: Convert to fraction form
    57,476.91/79,318.20 = 31,985.61/x
  3. Step 3: Cross multiply
    57,476.91x = 79,318.20 × 31,985.61
  4. Step 4: Simplify right side
    57,476.91x = 2,537,041,011.10
  5. Step 5: Solve for x
    x = 2,537,041,011.10/57,476.91
  6. Step 6: Final answer
    x = 44,140.18

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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.