Home / 78,314.28-117,475.51-36,233.66

Finding the Fourth Proportional to 78,314.28, 117,475.51 and 36,233.66

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Solution

The fourth proportional to 78,314.28, 117,475.51 and 36,233.66 is: 54,352.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,314.28 : 117,475.51 = 36,233.66 : x
  2. Step 2: Convert to fraction form
    78,314.28/117,475.51 = 36,233.66/x
  3. Step 3: Cross multiply
    78,314.28x = 117,475.51 × 36,233.66
  4. Step 4: Simplify right side
    78,314.28x = 4,256,567,687.67
  5. Step 5: Solve for x
    x = 4,256,567,687.67/78,314.28
  6. Step 6: Final answer
    x = 54,352.39

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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.