Home / 83,891.48-125,887.47-31,337.90

Finding the Fourth Proportional to 83,891.48, 125,887.47 and 31,337.90

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Solution

The fourth proportional to 83,891.48, 125,887.47 and 31,337.90 is: 47,025.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,891.48 : 125,887.47 = 31,337.90 : x
  2. Step 2: Convert to fraction form
    83,891.48/125,887.47 = 31,337.90/x
  3. Step 3: Cross multiply
    83,891.48x = 125,887.47 × 31,337.90
  4. Step 4: Simplify right side
    83,891.48x = 3,945,048,946.11
  5. Step 5: Solve for x
    x = 3,945,048,946.11/83,891.48
  6. Step 6: Final answer
    x = 47,025.62

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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.