Home / 92,306.40-138,440.70-25,729.80

Finding the Fourth Proportional to 92,306.40, 138,440.70 and 25,729.80

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Solution

The fourth proportional to 92,306.40, 138,440.70 and 25,729.80 is: 38,589.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,306.40 : 138,440.70 = 25,729.80 : x
  2. Step 2: Convert to fraction form
    92,306.40/138,440.70 = 25,729.80/x
  3. Step 3: Cross multiply
    92,306.40x = 138,440.70 × 25,729.80
  4. Step 4: Simplify right side
    92,306.40x = 3,562,051,522.86
  5. Step 5: Solve for x
    x = 3,562,051,522.86/92,306.40
  6. Step 6: Final answer
    x = 38,589.43

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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.