Home / 90,445.28-124,670.66-71,294

Finding the Fourth Proportional to 90,445.28, 124,670.66 and 71,294

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Solution

The fourth proportional to 90,445.28, 124,670.66 and 71,294 is: 98,272.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,445.28 : 124,670.66 = 71,294 : x
  2. Step 2: Convert to fraction form
    90,445.28/124,670.66 = 71,294/x
  3. Step 3: Cross multiply
    90,445.28x = 124,670.66 × 71,294
  4. Step 4: Simplify right side
    90,445.28x = 8,888,270,034.04
  5. Step 5: Solve for x
    x = 8,888,270,034.04/90,445.28
  6. Step 6: Final answer
    x = 98,272.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.