Home / 89,972.64-124,156.80-54,174.24

Finding the Fourth Proportional to 89,972.64, 124,156.80 and 54,174.24

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Solution

The fourth proportional to 89,972.64, 124,156.80 and 54,174.24 is: 74,757.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,972.64 : 124,156.80 = 54,174.24 : x
  2. Step 2: Convert to fraction form
    89,972.64/124,156.80 = 54,174.24/x
  3. Step 3: Cross multiply
    89,972.64x = 124,156.80 × 54,174.24
  4. Step 4: Simplify right side
    89,972.64x = 6,726,100,280.83
  5. Step 5: Solve for x
    x = 6,726,100,280.83/89,972.64
  6. Step 6: Final answer
    x = 74,757.17

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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.