Home / 71,167.28-98,212.19-39,335.49

Finding the Fourth Proportional to 71,167.28, 98,212.19 and 39,335.49

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Solution

The fourth proportional to 71,167.28, 98,212.19 and 39,335.49 is: 54,283.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,167.28 : 98,212.19 = 39,335.49 : x
  2. Step 2: Convert to fraction form
    71,167.28/98,212.19 = 39,335.49/x
  3. Step 3: Cross multiply
    71,167.28x = 98,212.19 × 39,335.49
  4. Step 4: Simplify right side
    71,167.28x = 3,863,224,420.95
  5. Step 5: Solve for x
    x = 3,863,224,420.95/71,167.28
  6. Step 6: Final answer
    x = 54,283.72

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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.