Home / 71,427.26-98,564.29-39,156.71

Finding the Fourth Proportional to 71,427.26, 98,564.29 and 39,156.71

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Solution

The fourth proportional to 71,427.26, 98,564.29 and 39,156.71 is: 54,033.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,427.26 : 98,564.29 = 39,156.71 : x
  2. Step 2: Convert to fraction form
    71,427.26/98,564.29 = 39,156.71/x
  3. Step 3: Cross multiply
    71,427.26x = 98,564.29 × 39,156.71
  4. Step 4: Simplify right side
    71,427.26x = 3,859,452,729.17
  5. Step 5: Solve for x
    x = 3,859,452,729.17/71,427.26
  6. Step 6: Final answer
    x = 54,033.33

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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.