Home / 82,518.08-123,757.28-38,102.16

Finding the Fourth Proportional to 82,518.08, 123,757.28 and 38,102.16

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Solution

The fourth proportional to 82,518.08, 123,757.28 and 38,102.16 is: 57,144.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,518.08 : 123,757.28 = 38,102.16 : x
  2. Step 2: Convert to fraction form
    82,518.08/123,757.28 = 38,102.16/x
  3. Step 3: Cross multiply
    82,518.08x = 123,757.28 × 38,102.16
  4. Step 4: Simplify right side
    82,518.08x = 4,715,419,683.72
  5. Step 5: Solve for x
    x = 4,715,419,683.72/82,518.08
  6. Step 6: Final answer
    x = 57,144.08

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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.