Home / 42,757.09-64,168.47-40,561.97

Finding the Fourth Proportional to 42,757.09, 64,168.47 and 40,561.97

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Solution

The fourth proportional to 42,757.09, 64,168.47 and 40,561.97 is: 60,874.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,757.09 : 64,168.47 = 40,561.97 : x
  2. Step 2: Convert to fraction form
    42,757.09/64,168.47 = 40,561.97/x
  3. Step 3: Cross multiply
    42,757.09x = 64,168.47 × 40,561.97
  4. Step 4: Simplify right side
    42,757.09x = 2,602,799,234.24
  5. Step 5: Solve for x
    x = 2,602,799,234.24/42,757.09
  6. Step 6: Final answer
    x = 60,874.10

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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.