Home / 83,919.88-125,879.79-31,333.46

Finding the Fourth Proportional to 83,919.88, 125,879.79 and 31,333.46

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Solution

The fourth proportional to 83,919.88, 125,879.79 and 31,333.46 is: 47,000.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,919.88 : 125,879.79 = 31,333.46 : x
  2. Step 2: Convert to fraction form
    83,919.88/125,879.79 = 31,333.46/x
  3. Step 3: Cross multiply
    83,919.88x = 125,879.79 × 31,333.46
  4. Step 4: Simplify right side
    83,919.88x = 3,944,249,364.77
  5. Step 5: Solve for x
    x = 3,944,249,364.77/83,919.88
  6. Step 6: Final answer
    x = 47,000.18

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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.