Home / 78,260.96-117,387.36-25,663.52

Finding the Fourth Proportional to 78,260.96, 117,387.36 and 25,663.52

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Solution

The fourth proportional to 78,260.96, 117,387.36 and 25,663.52 is: 38,493.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,260.96 : 117,387.36 = 25,663.52 : x
  2. Step 2: Convert to fraction form
    78,260.96/117,387.36 = 25,663.52/x
  3. Step 3: Cross multiply
    78,260.96x = 117,387.36 × 25,663.52
  4. Step 4: Simplify right side
    78,260.96x = 3,012,572,861.11
  5. Step 5: Solve for x
    x = 3,012,572,861.11/78,260.96
  6. Step 6: Final answer
    x = 38,493.94

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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.