Home / 71,151.21-98,194.88-39,326.31

Finding the Fourth Proportional to 71,151.21, 98,194.88 and 39,326.31

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Solution

The fourth proportional to 71,151.21, 98,194.88 and 39,326.31 is: 54,273.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,151.21 : 98,194.88 = 39,326.31 : x
  2. Step 2: Convert to fraction form
    71,151.21/98,194.88 = 39,326.31/x
  3. Step 3: Cross multiply
    71,151.21x = 98,194.88 × 39,326.31
  4. Step 4: Simplify right side
    71,151.21x = 3,861,642,389.61
  5. Step 5: Solve for x
    x = 3,861,642,389.61/71,151.21
  6. Step 6: Final answer
    x = 54,273.74

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1.5x scale

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.