Home / 71,425.02-98,564.38-39,158.97

Finding the Fourth Proportional to 71,425.02, 98,564.38 and 39,158.97

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Solution

The fourth proportional to 71,425.02, 98,564.38 and 39,158.97 is: 54,038.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,425.02 : 98,564.38 = 39,158.97 : x
  2. Step 2: Convert to fraction form
    71,425.02/98,564.38 = 39,158.97/x
  3. Step 3: Cross multiply
    71,425.02x = 98,564.38 × 39,158.97
  4. Step 4: Simplify right side
    71,425.02x = 3,859,679,599.49
  5. Step 5: Solve for x
    x = 3,859,679,599.49/71,425.02
  6. Step 6: Final answer
    x = 54,038.20

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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.