Home / 56,138.76-84,151.16-47,945.72

Finding the Fourth Proportional to 56,138.76, 84,151.16 and 47,945.72

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Solution

The fourth proportional to 56,138.76, 84,151.16 and 47,945.72 is: 71,869.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,138.76 : 84,151.16 = 47,945.72 : x
  2. Step 2: Convert to fraction form
    56,138.76/84,151.16 = 47,945.72/x
  3. Step 3: Cross multiply
    56,138.76x = 84,151.16 × 47,945.72
  4. Step 4: Simplify right side
    56,138.76x = 4,034,687,955.04
  5. Step 5: Solve for x
    x = 4,034,687,955.04/56,138.76
  6. Step 6: Final answer
    x = 71,869.92

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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.