Home / 71,162.19-98,203.06-39,331.17

Finding the Fourth Proportional to 71,162.19, 98,203.06 and 39,331.17

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Solution

The fourth proportional to 71,162.19, 98,203.06 and 39,331.17 is: 54,276.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,162.19 : 98,203.06 = 39,331.17 : x
  2. Step 2: Convert to fraction form
    71,162.19/98,203.06 = 39,331.17/x
  3. Step 3: Cross multiply
    71,162.19x = 98,203.06 × 39,331.17
  4. Step 4: Simplify right side
    71,162.19x = 3,862,441,247.38
  5. Step 5: Solve for x
    x = 3,862,441,247.38/71,162.19
  6. Step 6: Final answer
    x = 54,276.59

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Half scale
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Double scale
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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.