Home / 86,491.21-129,503.11-44,850.73

Finding the Fourth Proportional to 86,491.21, 129,503.11 and 44,850.73

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Solution

The fourth proportional to 86,491.21, 129,503.11 and 44,850.73 is: 67,154.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,491.21 : 129,503.11 = 44,850.73 : x
  2. Step 2: Convert to fraction form
    86,491.21/129,503.11 = 44,850.73/x
  3. Step 3: Cross multiply
    86,491.21x = 129,503.11 × 44,850.73
  4. Step 4: Simplify right side
    86,491.21x = 5,808,309,020.77
  5. Step 5: Solve for x
    x = 5,808,309,020.77/86,491.21
  6. Step 6: Final answer
    x = 67,154.91

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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.