Home / 81,832.40-122,748.61-25,681.17

Finding the Fourth Proportional to 81,832.40, 122,748.61 and 25,681.17

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Solution

The fourth proportional to 81,832.40, 122,748.61 and 25,681.17 is: 38,521.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,832.40 : 122,748.61 = 25,681.17 : x
  2. Step 2: Convert to fraction form
    81,832.40/122,748.61 = 25,681.17/x
  3. Step 3: Cross multiply
    81,832.40x = 122,748.61 × 25,681.17
  4. Step 4: Simplify right side
    81,832.40x = 3,152,327,920.67
  5. Step 5: Solve for x
    x = 3,152,327,920.67/81,832.40
  6. Step 6: Final answer
    x = 38,521.76

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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.