Home / 83,345.00-115,015.22-45,103.72

Finding the Fourth Proportional to 83,345.00, 115,015.22 and 45,103.72

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Solution

The fourth proportional to 83,345.00, 115,015.22 and 45,103.72 is: 62,242.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,345.00 : 115,015.22 = 45,103.72 : x
  2. Step 2: Convert to fraction form
    83,345.00/115,015.22 = 45,103.72/x
  3. Step 3: Cross multiply
    83,345.00x = 115,015.22 × 45,103.72
  4. Step 4: Simplify right side
    83,345.00x = 5,187,613,765.56
  5. Step 5: Solve for x
    x = 5,187,613,765.56/83,345.00
  6. Step 6: Final answer
    x = 62,242.65

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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.