Home / 86,174.19-129,191.55-38,754.55

Finding the Fourth Proportional to 86,174.19, 129,191.55 and 38,754.55

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Solution

The fourth proportional to 86,174.19, 129,191.55 and 38,754.55 is: 58,100.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,174.19 : 129,191.55 = 38,754.55 : x
  2. Step 2: Convert to fraction form
    86,174.19/129,191.55 = 38,754.55/x
  3. Step 3: Cross multiply
    86,174.19x = 129,191.55 × 38,754.55
  4. Step 4: Simplify right side
    86,174.19x = 5,006,760,384.05
  5. Step 5: Solve for x
    x = 5,006,760,384.05/86,174.19
  6. Step 6: Final answer
    x = 58,100.46

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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.