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Finding the Fourth Proportional to 56,941.52, 85,416.76 and 15,387.92

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Solution

The fourth proportional to 56,941.52, 85,416.76 and 15,387.92 is: 23,083.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,941.52 : 85,416.76 = 15,387.92 : x
  2. Step 2: Convert to fraction form
    56,941.52/85,416.76 = 15,387.92/x
  3. Step 3: Cross multiply
    56,941.52x = 85,416.76 × 15,387.92
  4. Step 4: Simplify right side
    56,941.52x = 1,314,386,269.54
  5. Step 5: Solve for x
    x = 1,314,386,269.54/56,941.52
  6. Step 6: Final answer
    x = 23,083.09

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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.