Home / 84,887.62-127,252.29-28,688.43

Finding the Fourth Proportional to 84,887.62, 127,252.29 and 28,688.43

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Solution

The fourth proportional to 84,887.62, 127,252.29 and 28,688.43 is: 43,005.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,887.62 : 127,252.29 = 28,688.43 : x
  2. Step 2: Convert to fraction form
    84,887.62/127,252.29 = 28,688.43/x
  3. Step 3: Cross multiply
    84,887.62x = 127,252.29 × 28,688.43
  4. Step 4: Simplify right side
    84,887.62x = 3,650,668,306.42
  5. Step 5: Solve for x
    x = 3,650,668,306.42/84,887.62
  6. Step 6: Final answer
    x = 43,005.90

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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.