Home / 90,898.42-136,367.22-45,331.02

Finding the Fourth Proportional to 90,898.42, 136,367.22 and 45,331.02

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Solution

The fourth proportional to 90,898.42, 136,367.22 and 45,331.02 is: 68,006.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,898.42 : 136,367.22 = 45,331.02 : x
  2. Step 2: Convert to fraction form
    90,898.42/136,367.22 = 45,331.02/x
  3. Step 3: Cross multiply
    90,898.42x = 136,367.22 × 45,331.02
  4. Step 4: Simplify right side
    90,898.42x = 6,181,665,177.16
  5. Step 5: Solve for x
    x = 6,181,665,177.16/90,898.42
  6. Step 6: Final answer
    x = 68,006.30

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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.