Home / 82,397.40-123,596.10-54,330.90

Finding the Fourth Proportional to 82,397.40, 123,596.10 and 54,330.90

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Solution

The fourth proportional to 82,397.40, 123,596.10 and 54,330.90 is: 81,496.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,397.40 : 123,596.10 = 54,330.90 : x
  2. Step 2: Convert to fraction form
    82,397.40/123,596.10 = 54,330.90/x
  3. Step 3: Cross multiply
    82,397.40x = 123,596.10 × 54,330.90
  4. Step 4: Simplify right side
    82,397.40x = 6,715,087,349.49
  5. Step 5: Solve for x
    x = 6,715,087,349.49/82,397.40
  6. Step 6: Final answer
    x = 81,496.35

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1.5x scale

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.