Home / 84,291.77-126,456.13-31,701.24

Finding the Fourth Proportional to 84,291.77, 126,456.13 and 31,701.24

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Solution

The fourth proportional to 84,291.77, 126,456.13 and 31,701.24 is: 47,558.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,291.77 : 126,456.13 = 31,701.24 : x
  2. Step 2: Convert to fraction form
    84,291.77/126,456.13 = 31,701.24/x
  3. Step 3: Cross multiply
    84,291.77x = 126,456.13 × 31,701.24
  4. Step 4: Simplify right side
    84,291.77x = 4,008,816,126.60
  5. Step 5: Solve for x
    x = 4,008,816,126.60/84,291.77
  6. Step 6: Final answer
    x = 47,558.81

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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.