Home / 42,712.11-64,073.29-17,769.03

Finding the Fourth Proportional to 42,712.11, 64,073.29 and 17,769.03

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Solution

The fourth proportional to 42,712.11, 64,073.29 and 17,769.03 is: 26,655.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,712.11 : 64,073.29 = 17,769.03 : x
  2. Step 2: Convert to fraction form
    42,712.11/64,073.29 = 17,769.03/x
  3. Step 3: Cross multiply
    42,712.11x = 64,073.29 × 17,769.03
  4. Step 4: Simplify right side
    42,712.11x = 1,138,520,436.33
  5. Step 5: Solve for x
    x = 1,138,520,436.33/42,712.11
  6. Step 6: Final answer
    x = 26,655.68

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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.