Home / 76,870.80-115,306.20-32,486.04

Finding the Fourth Proportional to 76,870.80, 115,306.20 and 32,486.04

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Solution

The fourth proportional to 76,870.80, 115,306.20 and 32,486.04 is: 48,729.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,870.80 : 115,306.20 = 32,486.04 : x
  2. Step 2: Convert to fraction form
    76,870.80/115,306.20 = 32,486.04/x
  3. Step 3: Cross multiply
    76,870.80x = 115,306.20 × 32,486.04
  4. Step 4: Simplify right side
    76,870.80x = 3,745,841,825.45
  5. Step 5: Solve for x
    x = 3,745,841,825.45/76,870.80
  6. Step 6: Final answer
    x = 48,729.06

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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.