Home / 71,049.96-106,572.51-18,459.90

Finding the Fourth Proportional to 71,049.96, 106,572.51 and 18,459.90

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Solution

The fourth proportional to 71,049.96, 106,572.51 and 18,459.90 is: 27,689.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,049.96 : 106,572.51 = 18,459.90 : x
  2. Step 2: Convert to fraction form
    71,049.96/106,572.51 = 18,459.90/x
  3. Step 3: Cross multiply
    71,049.96x = 106,572.51 × 18,459.90
  4. Step 4: Simplify right side
    71,049.96x = 1,967,317,877.35
  5. Step 5: Solve for x
    x = 1,967,317,877.35/71,049.96
  6. Step 6: Final answer
    x = 27,689.22

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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.