Home / 98,079.42-135,354.11-54,472.17

Finding the Fourth Proportional to 98,079.42, 135,354.11 and 54,472.17

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Solution

The fourth proportional to 98,079.42, 135,354.11 and 54,472.17 is: 75,174.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,079.42 : 135,354.11 = 54,472.17 : x
  2. Step 2: Convert to fraction form
    98,079.42/135,354.11 = 54,472.17/x
  3. Step 3: Cross multiply
    98,079.42x = 135,354.11 × 54,472.17
  4. Step 4: Simplify right side
    98,079.42x = 7,373,031,817.76
  5. Step 5: Solve for x
    x = 7,373,031,817.76/98,079.42
  6. Step 6: Final answer
    x = 75,174.10

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1.5x scale

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.