Home / 83,138.40-124,756.77-30,584.76

Finding the Fourth Proportional to 83,138.40, 124,756.77 and 30,584.76

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Solution

The fourth proportional to 83,138.40, 124,756.77 and 30,584.76 is: 45,895.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,138.40 : 124,756.77 = 30,584.76 : x
  2. Step 2: Convert to fraction form
    83,138.40/124,756.77 = 30,584.76/x
  3. Step 3: Cross multiply
    83,138.40x = 124,756.77 × 30,584.76
  4. Step 4: Simplify right side
    83,138.40x = 3,815,655,868.83
  5. Step 5: Solve for x
    x = 3,815,655,868.83/83,138.40
  6. Step 6: Final answer
    x = 45,895.23

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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.