Home / 43,140.77-64,711.14-19,767.20

Finding the Fourth Proportional to 43,140.77, 64,711.14 and 19,767.20

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Solution

The fourth proportional to 43,140.77, 64,711.14 and 19,767.20 is: 29,650.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,140.77 : 64,711.14 = 19,767.20 : x
  2. Step 2: Convert to fraction form
    43,140.77/64,711.14 = 19,767.20/x
  3. Step 3: Cross multiply
    43,140.77x = 64,711.14 × 19,767.20
  4. Step 4: Simplify right side
    43,140.77x = 1,279,157,723.05
  5. Step 5: Solve for x
    x = 1,279,157,723.05/43,140.77
  6. Step 6: Final answer
    x = 29,650.79

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Similar ratio
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1.5x scale

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.