Home / 45,381.04-68,000.45-28,705.85

Finding the Fourth Proportional to 45,381.04, 68,000.45 and 28,705.85

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Solution

The fourth proportional to 45,381.04, 68,000.45 and 28,705.85 is: 43,013.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,381.04 : 68,000.45 = 28,705.85 : x
  2. Step 2: Convert to fraction form
    45,381.04/68,000.45 = 28,705.85/x
  3. Step 3: Cross multiply
    45,381.04x = 68,000.45 × 28,705.85
  4. Step 4: Simplify right side
    45,381.04x = 1,952,010,836.14
  5. Step 5: Solve for x
    x = 1,952,010,836.14/45,381.04
  6. Step 6: Final answer
    x = 43,013.79

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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.