Home / 83,121.36-124,698.30-30,531.24

Finding the Fourth Proportional to 83,121.36, 124,698.30 and 30,531.24

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Solution

The fourth proportional to 83,121.36, 124,698.30 and 30,531.24 is: 45,802.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,121.36 : 124,698.30 = 30,531.24 : x
  2. Step 2: Convert to fraction form
    83,121.36/124,698.30 = 30,531.24/x
  3. Step 3: Cross multiply
    83,121.36x = 124,698.30 × 30,531.24
  4. Step 4: Simplify right side
    83,121.36x = 3,807,193,724.89
  5. Step 5: Solve for x
    x = 3,807,193,724.89/83,121.36
  6. Step 6: Final answer
    x = 45,802.83

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1.5x scale

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.