Home / 81,156.16-111,817.28-60,652.36

Finding the Fourth Proportional to 81,156.16, 111,817.28 and 60,652.36

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Solution

The fourth proportional to 81,156.16, 111,817.28 and 60,652.36 is: 83,567.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,156.16 : 111,817.28 = 60,652.36 : x
  2. Step 2: Convert to fraction form
    81,156.16/111,817.28 = 60,652.36/x
  3. Step 3: Cross multiply
    81,156.16x = 111,817.28 × 60,652.36
  4. Step 4: Simplify right side
    81,156.16x = 6,781,981,920.78
  5. Step 5: Solve for x
    x = 6,781,981,920.78/81,156.16
  6. Step 6: Final answer
    x = 83,567.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.