Home / 78,182.96-117,250.14-25,580.76

Finding the Fourth Proportional to 78,182.96, 117,250.14 and 25,580.76

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Solution

The fourth proportional to 78,182.96, 117,250.14 and 25,580.76 is: 38,363.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,182.96 : 117,250.14 = 25,580.76 : x
  2. Step 2: Convert to fraction form
    78,182.96/117,250.14 = 25,580.76/x
  3. Step 3: Cross multiply
    78,182.96x = 117,250.14 × 25,580.76
  4. Step 4: Simplify right side
    78,182.96x = 2,999,347,691.31
  5. Step 5: Solve for x
    x = 2,999,347,691.31/78,182.96
  6. Step 6: Final answer
    x = 38,363.19

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1.5x scale

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.