Home / 78,334.78-117,502.20-22,930.78

Finding the Fourth Proportional to 78,334.78, 117,502.20 and 22,930.78

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Solution

The fourth proportional to 78,334.78, 117,502.20 and 22,930.78 is: 34,396.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,334.78 : 117,502.20 = 22,930.78 : x
  2. Step 2: Convert to fraction form
    78,334.78/117,502.20 = 22,930.78/x
  3. Step 3: Cross multiply
    78,334.78x = 117,502.20 × 22,930.78
  4. Step 4: Simplify right side
    78,334.78x = 2,694,417,097.72
  5. Step 5: Solve for x
    x = 2,694,417,097.72/78,334.78
  6. Step 6: Final answer
    x = 34,396.18

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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.