Home / 86,441.46-129,572.28-36,479.85

Finding the Fourth Proportional to 86,441.46, 129,572.28 and 36,479.85

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Solution

The fourth proportional to 86,441.46, 129,572.28 and 36,479.85 is: 54,681.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,441.46 : 129,572.28 = 36,479.85 : x
  2. Step 2: Convert to fraction form
    86,441.46/129,572.28 = 36,479.85/x
  3. Step 3: Cross multiply
    86,441.46x = 129,572.28 × 36,479.85
  4. Step 4: Simplify right side
    86,441.46x = 4,726,777,338.56
  5. Step 5: Solve for x
    x = 4,726,777,338.56/86,441.46
  6. Step 6: Final answer
    x = 54,681.83

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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.