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Finding the Fourth Proportional to 56,862.81, 85,294.22 and 15,309.81

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Solution

The fourth proportional to 56,862.81, 85,294.22 and 15,309.81 is: 22,964.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,862.81 : 85,294.22 = 15,309.81 : x
  2. Step 2: Convert to fraction form
    56,862.81/85,294.22 = 15,309.81/x
  3. Step 3: Cross multiply
    56,862.81x = 85,294.22 × 15,309.81
  4. Step 4: Simplify right side
    56,862.81x = 1,305,838,225.75
  5. Step 5: Solve for x
    x = 1,305,838,225.75/56,862.81
  6. Step 6: Final answer
    x = 22,964.72

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Similar ratio
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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.