Home / 43,545.20-65,207.01-28,709.11

Finding the Fourth Proportional to 43,545.20, 65,207.01 and 28,709.11

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Solution

The fourth proportional to 43,545.20, 65,207.01 and 28,709.11 is: 42,990.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,545.20 : 65,207.01 = 28,709.11 : x
  2. Step 2: Convert to fraction form
    43,545.20/65,207.01 = 28,709.11/x
  3. Step 3: Cross multiply
    43,545.20x = 65,207.01 × 28,709.11
  4. Step 4: Simplify right side
    43,545.20x = 1,872,035,255.55
  5. Step 5: Solve for x
    x = 1,872,035,255.55/43,545.20
  6. Step 6: Final answer
    x = 42,990.62

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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.