Home / 83,983.80-115,895.90-45,743.79

Finding the Fourth Proportional to 83,983.80, 115,895.90 and 45,743.79

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Solution

The fourth proportional to 83,983.80, 115,895.90 and 45,743.79 is: 63,125.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,983.80 : 115,895.90 = 45,743.79 : x
  2. Step 2: Convert to fraction form
    83,983.80/115,895.90 = 45,743.79/x
  3. Step 3: Cross multiply
    83,983.80x = 115,895.90 × 45,743.79
  4. Step 4: Simplify right side
    83,983.80x = 5,301,517,825.82
  5. Step 5: Solve for x
    x = 5,301,517,825.82/83,983.80
  6. Step 6: Final answer
    x = 63,125.48

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1.5x scale

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.