Home / 66,138.41-99,176.36-25,630.92

Finding the Fourth Proportional to 66,138.41, 99,176.36 and 25,630.92

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Solution

The fourth proportional to 66,138.41, 99,176.36 and 25,630.92 is: 38,434.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,138.41 : 99,176.36 = 25,630.92 : x
  2. Step 2: Convert to fraction form
    66,138.41/99,176.36 = 25,630.92/x
  3. Step 3: Cross multiply
    66,138.41x = 99,176.36 × 25,630.92
  4. Step 4: Simplify right side
    66,138.41x = 2,541,981,220.90
  5. Step 5: Solve for x
    x = 2,541,981,220.90/66,138.41
  6. Step 6: Final answer
    x = 38,434.27

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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.