Home / 78,154.08-117,245.52-25,566.48

Finding the Fourth Proportional to 78,154.08, 117,245.52 and 25,566.48

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Solution

The fourth proportional to 78,154.08, 117,245.52 and 25,566.48 is: 38,354.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,154.08 : 117,245.52 = 25,566.48 : x
  2. Step 2: Convert to fraction form
    78,154.08/117,245.52 = 25,566.48/x
  3. Step 3: Cross multiply
    78,154.08x = 117,245.52 × 25,566.48
  4. Step 4: Simplify right side
    78,154.08x = 2,997,555,242.17
  5. Step 5: Solve for x
    x = 2,997,555,242.17/78,154.08
  6. Step 6: Final answer
    x = 38,354.43

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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.