Home / 77,257.30-115,675.20-58,480.42

Finding the Fourth Proportional to 77,257.30, 115,675.20 and 58,480.42

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Solution

The fourth proportional to 77,257.30, 115,675.20 and 58,480.42 is: 87,561.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,257.30 : 115,675.20 = 58,480.42 : x
  2. Step 2: Convert to fraction form
    77,257.30/115,675.20 = 58,480.42/x
  3. Step 3: Cross multiply
    77,257.30x = 115,675.20 × 58,480.42
  4. Step 4: Simplify right side
    77,257.30x = 6,764,734,279.58
  5. Step 5: Solve for x
    x = 6,764,734,279.58/77,257.30
  6. Step 6: Final answer
    x = 87,561.10

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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.