Home / 83,927.80-125,891.70-31,330.45

Finding the Fourth Proportional to 83,927.80, 125,891.70 and 31,330.45

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Solution

The fourth proportional to 83,927.80, 125,891.70 and 31,330.45 is: 46,995.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,927.80 : 125,891.70 = 31,330.45 : x
  2. Step 2: Convert to fraction form
    83,927.80/125,891.70 = 31,330.45/x
  3. Step 3: Cross multiply
    83,927.80x = 125,891.70 × 31,330.45
  4. Step 4: Simplify right side
    83,927.80x = 3,944,243,612.27
  5. Step 5: Solve for x
    x = 3,944,243,612.27/83,927.80
  6. Step 6: Final answer
    x = 46,995.68

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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.