Home / 83,345.20-115,019.12-45,619.44

Finding the Fourth Proportional to 83,345.20, 115,019.12 and 45,619.44

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Solution

The fourth proportional to 83,345.20, 115,019.12 and 45,619.44 is: 62,956.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,345.20 : 115,019.12 = 45,619.44 : x
  2. Step 2: Convert to fraction form
    83,345.20/115,019.12 = 45,619.44/x
  3. Step 3: Cross multiply
    83,345.20x = 115,019.12 × 45,619.44
  4. Step 4: Simplify right side
    83,345.20x = 5,247,107,843.69
  5. Step 5: Solve for x
    x = 5,247,107,843.69/83,345.20
  6. Step 6: Final answer
    x = 62,956.33

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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.