Home / 78,384.24-117,595.56-38,959.92

Finding the Fourth Proportional to 78,384.24, 117,595.56 and 38,959.92

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Solution

The fourth proportional to 78,384.24, 117,595.56 and 38,959.92 is: 58,449.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,384.24 : 117,595.56 = 38,959.92 : x
  2. Step 2: Convert to fraction form
    78,384.24/117,595.56 = 38,959.92/x
  3. Step 3: Cross multiply
    78,384.24x = 117,595.56 × 38,959.92
  4. Step 4: Simplify right side
    78,384.24x = 4,581,513,609.96
  5. Step 5: Solve for x
    x = 4,581,513,609.96/78,384.24
  6. Step 6: Final answer
    x = 58,449.42

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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.