Home / 89,907.12-134,747.28-45,545.04

Finding the Fourth Proportional to 89,907.12, 134,747.28 and 45,545.04

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Solution

The fourth proportional to 89,907.12, 134,747.28 and 45,545.04 is: 68,260.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,907.12 : 134,747.28 = 45,545.04 : x
  2. Step 2: Convert to fraction form
    89,907.12/134,747.28 = 45,545.04/x
  3. Step 3: Cross multiply
    89,907.12x = 134,747.28 × 45,545.04
  4. Step 4: Simplify right side
    89,907.12x = 6,137,070,257.49
  5. Step 5: Solve for x
    x = 6,137,070,257.49/89,907.12
  6. Step 6: Final answer
    x = 68,260.11

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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.