Home / 83,899.40-125,849.10-31,306.10

Finding the Fourth Proportional to 83,899.40, 125,849.10 and 31,306.10

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Solution

The fourth proportional to 83,899.40, 125,849.10 and 31,306.10 is: 46,959.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,899.40 : 125,849.10 = 31,306.10 : x
  2. Step 2: Convert to fraction form
    83,899.40/125,849.10 = 31,306.10/x
  3. Step 3: Cross multiply
    83,899.40x = 125,849.10 × 31,306.10
  4. Step 4: Simplify right side
    83,899.40x = 3,939,844,509.51
  5. Step 5: Solve for x
    x = 3,939,844,509.51/83,899.40
  6. Step 6: Final answer
    x = 46,959.15

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Similar ratio
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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.