Home / 83,418.84-115,119.36-45,690.66

Finding the Fourth Proportional to 83,418.84, 115,119.36 and 45,690.66

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Solution

The fourth proportional to 83,418.84, 115,119.36 and 45,690.66 is: 63,053.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,418.84 : 115,119.36 = 45,690.66 : x
  2. Step 2: Convert to fraction form
    83,418.84/115,119.36 = 45,690.66/x
  3. Step 3: Cross multiply
    83,418.84x = 115,119.36 × 45,690.66
  4. Step 4: Simplify right side
    83,418.84x = 5,259,879,537.18
  5. Step 5: Solve for x
    x = 5,259,879,537.18/83,418.84
  6. Step 6: Final answer
    x = 63,053.86

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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.