Home / 78,285.71-117,436.24-22,126.25

Finding the Fourth Proportional to 78,285.71, 117,436.24 and 22,126.25

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Solution

The fourth proportional to 78,285.71, 117,436.24 and 22,126.25 is: 33,191.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,285.71 : 117,436.24 = 22,126.25 : x
  2. Step 2: Convert to fraction form
    78,285.71/117,436.24 = 22,126.25/x
  3. Step 3: Cross multiply
    78,285.71x = 117,436.24 × 22,126.25
  4. Step 4: Simplify right side
    78,285.71x = 2,598,423,073.43
  5. Step 5: Solve for x
    x = 2,598,423,073.43/78,285.71
  6. Step 6: Final answer
    x = 33,191.54

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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.