Home / 83,372.72-115,057.16-45,647.76

Finding the Fourth Proportional to 83,372.72, 115,057.16 and 45,647.76

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Solution

The fourth proportional to 83,372.72, 115,057.16 and 45,647.76 is: 62,995.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,372.72 : 115,057.16 = 45,647.76 : x
  2. Step 2: Convert to fraction form
    83,372.72/115,057.16 = 45,647.76/x
  3. Step 3: Cross multiply
    83,372.72x = 115,057.16 × 45,647.76
  4. Step 4: Simplify right side
    83,372.72x = 5,252,101,625.96
  5. Step 5: Solve for x
    x = 5,252,101,625.96/83,372.72
  6. Step 6: Final answer
    x = 62,995.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.