Home / 86,442.75-129,715.16-36,519.62

Finding the Fourth Proportional to 86,442.75, 129,715.16 and 36,519.62

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Solution

The fourth proportional to 86,442.75, 129,715.16 and 36,519.62 is: 54,800.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,442.75 : 129,715.16 = 36,519.62 : x
  2. Step 2: Convert to fraction form
    86,442.75/129,715.16 = 36,519.62/x
  3. Step 3: Cross multiply
    86,442.75x = 129,715.16 × 36,519.62
  4. Step 4: Simplify right side
    86,442.75x = 4,737,147,520.27
  5. Step 5: Solve for x
    x = 4,737,147,520.27/86,442.75
  6. Step 6: Final answer
    x = 54,800.98

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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.