Home / 83,115.18-114,699.15-45,389.43

Finding the Fourth Proportional to 83,115.18, 114,699.15 and 45,389.43

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Solution

The fourth proportional to 83,115.18, 114,699.15 and 45,389.43 is: 62,637.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,115.18 : 114,699.15 = 45,389.43 : x
  2. Step 2: Convert to fraction form
    83,115.18/114,699.15 = 45,389.43/x
  3. Step 3: Cross multiply
    83,115.18x = 114,699.15 × 45,389.43
  4. Step 4: Simplify right side
    83,115.18x = 5,206,129,039.98
  5. Step 5: Solve for x
    x = 5,206,129,039.98/83,115.18
  6. Step 6: Final answer
    x = 62,637.52

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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.