Home / 83,895.12-125,864.46-31,305

Finding the Fourth Proportional to 83,895.12, 125,864.46 and 31,305

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Solution

The fourth proportional to 83,895.12, 125,864.46 and 31,305 is: 46,965.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,895.12 : 125,864.46 = 31,305 : x
  2. Step 2: Convert to fraction form
    83,895.12/125,864.46 = 31,305/x
  3. Step 3: Cross multiply
    83,895.12x = 125,864.46 × 31,305
  4. Step 4: Simplify right side
    83,895.12x = 3,940,186,920.30
  5. Step 5: Solve for x
    x = 3,940,186,920.30/83,895.12
  6. Step 6: Final answer
    x = 46,965.63

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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.