Home / 83,419.09-115,119.84-45,690.91

Finding the Fourth Proportional to 83,419.09, 115,119.84 and 45,690.91

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Solution

The fourth proportional to 83,419.09, 115,119.84 and 45,690.91 is: 63,054.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,419.09 : 115,119.84 = 45,690.91 : x
  2. Step 2: Convert to fraction form
    83,419.09/115,119.84 = 45,690.91/x
  3. Step 3: Cross multiply
    83,419.09x = 115,119.84 × 45,690.91
  4. Step 4: Simplify right side
    83,419.09x = 5,259,930,248.65
  5. Step 5: Solve for x
    x = 5,259,930,248.65/83,419.09
  6. Step 6: Final answer
    x = 63,054.28

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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.