Home / 81,908.61-122,863.18-25,753.33

Finding the Fourth Proportional to 81,908.61, 122,863.18 and 25,753.33

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Solution

The fourth proportional to 81,908.61, 122,863.18 and 25,753.33 is: 38,630.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,908.61 : 122,863.18 = 25,753.33 : x
  2. Step 2: Convert to fraction form
    81,908.61/122,863.18 = 25,753.33/x
  3. Step 3: Cross multiply
    81,908.61x = 122,863.18 × 25,753.33
  4. Step 4: Simplify right side
    81,908.61x = 3,164,136,019.39
  5. Step 5: Solve for x
    x = 3,164,136,019.39/81,908.61
  6. Step 6: Final answer
    x = 38,630.08

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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.