Home / 89,724.60-134,441.10-84,475.80

Finding the Fourth Proportional to 89,724.60, 134,441.10 and 84,475.80

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Solution

The fourth proportional to 89,724.60, 134,441.10 and 84,475.80 is: 126,576.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,724.60 : 134,441.10 = 84,475.80 : x
  2. Step 2: Convert to fraction form
    89,724.60/134,441.10 = 84,475.80/x
  3. Step 3: Cross multiply
    89,724.60x = 134,441.10 × 84,475.80
  4. Step 4: Simplify right side
    89,724.60x = 11,357,019,475.38
  5. Step 5: Solve for x
    x = 11,357,019,475.38/89,724.60
  6. Step 6: Final answer
    x = 126,576.43

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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.