Home / 43,126.65-64,692.72-13,545.66

Finding the Fourth Proportional to 43,126.65, 64,692.72 and 13,545.66

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Solution

The fourth proportional to 43,126.65, 64,692.72 and 13,545.66 is: 20,319.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,126.65 : 64,692.72 = 13,545.66 : x
  2. Step 2: Convert to fraction form
    43,126.65/64,692.72 = 13,545.66/x
  3. Step 3: Cross multiply
    43,126.65x = 64,692.72 × 13,545.66
  4. Step 4: Simplify right side
    43,126.65x = 876,305,589.60
  5. Step 5: Solve for x
    x = 876,305,589.60/43,126.65
  6. Step 6: Final answer
    x = 20,319.35

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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.