Home / 42,451.05-63,668.34-40,343.70

Finding the Fourth Proportional to 42,451.05, 63,668.34 and 40,343.70

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Solution

The fourth proportional to 42,451.05, 63,668.34 and 40,343.70 is: 60,507.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,451.05 : 63,668.34 = 40,343.70 : x
  2. Step 2: Convert to fraction form
    42,451.05/63,668.34 = 40,343.70/x
  3. Step 3: Cross multiply
    42,451.05x = 63,668.34 × 40,343.70
  4. Step 4: Simplify right side
    42,451.05x = 2,568,616,408.46
  5. Step 5: Solve for x
    x = 2,568,616,408.46/42,451.05
  6. Step 6: Final answer
    x = 60,507.72

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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.