Home / 84,458.16-126,705.30-31,150.29

Finding the Fourth Proportional to 84,458.16, 126,705.30 and 31,150.29

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Solution

The fourth proportional to 84,458.16, 126,705.30 and 31,150.29 is: 46,732.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,458.16 : 126,705.30 = 31,150.29 : x
  2. Step 2: Convert to fraction form
    84,458.16/126,705.30 = 31,150.29/x
  3. Step 3: Cross multiply
    84,458.16x = 126,705.30 × 31,150.29
  4. Step 4: Simplify right side
    84,458.16x = 3,946,906,839.54
  5. Step 5: Solve for x
    x = 3,946,906,839.54/84,458.16
  6. Step 6: Final answer
    x = 46,732.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.