Home / 86,173.19-129,190.05-38,753.55

Finding the Fourth Proportional to 86,173.19, 129,190.05 and 38,753.55

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Solution

The fourth proportional to 86,173.19, 129,190.05 and 38,753.55 is: 58,098.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,173.19 : 129,190.05 = 38,753.55 : x
  2. Step 2: Convert to fraction form
    86,173.19/129,190.05 = 38,753.55/x
  3. Step 3: Cross multiply
    86,173.19x = 129,190.05 × 38,753.55
  4. Step 4: Simplify right side
    86,173.19x = 5,006,573,062.18
  5. Step 5: Solve for x
    x = 5,006,573,062.18/86,173.19
  6. Step 6: Final answer
    x = 58,098.97

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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.