Home / 83,319.18-124,990.64-30,724.58

Finding the Fourth Proportional to 83,319.18, 124,990.64 and 30,724.58

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Solution

The fourth proportional to 83,319.18, 124,990.64 and 30,724.58 is: 46,091.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,319.18 : 124,990.64 = 30,724.58 : x
  2. Step 2: Convert to fraction form
    83,319.18/124,990.64 = 30,724.58/x
  3. Step 3: Cross multiply
    83,319.18x = 124,990.64 × 30,724.58
  4. Step 4: Simplify right side
    83,319.18x = 3,840,284,139.36
  5. Step 5: Solve for x
    x = 3,840,284,139.36/83,319.18
  6. Step 6: Final answer
    x = 46,091.24

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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.