Home / 86,861.17-130,250.11-42,435.91

Finding the Fourth Proportional to 86,861.17, 130,250.11 and 42,435.91

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Solution

The fourth proportional to 86,861.17, 130,250.11 and 42,435.91 is: 63,633.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,861.17 : 130,250.11 = 42,435.91 : x
  2. Step 2: Convert to fraction form
    86,861.17/130,250.11 = 42,435.91/x
  3. Step 3: Cross multiply
    86,861.17x = 130,250.11 × 42,435.91
  4. Step 4: Simplify right side
    86,861.17x = 5,527,281,945.45
  5. Step 5: Solve for x
    x = 5,527,281,945.45/86,861.17
  6. Step 6: Final answer
    x = 63,633.52

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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.