Home / 84,989.30-127,532.55-58,712.90

Finding the Fourth Proportional to 84,989.30, 127,532.55 and 58,712.90

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Solution

The fourth proportional to 84,989.30, 127,532.55 and 58,712.90 is: 88,102.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,989.30 : 127,532.55 = 58,712.90 : x
  2. Step 2: Convert to fraction form
    84,989.30/127,532.55 = 58,712.90/x
  3. Step 3: Cross multiply
    84,989.30x = 127,532.55 × 58,712.90
  4. Step 4: Simplify right side
    84,989.30x = 7,487,805,854.90
  5. Step 5: Solve for x
    x = 7,487,805,854.90/84,989.30
  6. Step 6: Final answer
    x = 88,102.92

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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.