Home / 83,866.19-125,821.15-31,276.13

Finding the Fourth Proportional to 83,866.19, 125,821.15 and 31,276.13

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Solution

The fourth proportional to 83,866.19, 125,821.15 and 31,276.13 is: 46,922.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,866.19 : 125,821.15 = 31,276.13 : x
  2. Step 2: Convert to fraction form
    83,866.19/125,821.15 = 31,276.13/x
  3. Step 3: Cross multiply
    83,866.19x = 125,821.15 × 31,276.13
  4. Step 4: Simplify right side
    83,866.19x = 3,935,197,936.85
  5. Step 5: Solve for x
    x = 3,935,197,936.85/83,866.19
  6. Step 6: Final answer
    x = 46,922.34

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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.