Home / 83,971.68-115,879.17-45,731.64

Finding the Fourth Proportional to 83,971.68, 115,879.17 and 45,731.64

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Solution

The fourth proportional to 83,971.68, 115,879.17 and 45,731.64 is: 63,108.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,971.68 : 115,879.17 = 45,731.64 : x
  2. Step 2: Convert to fraction form
    83,971.68/115,879.17 = 45,731.64/x
  3. Step 3: Cross multiply
    83,971.68x = 115,879.17 × 45,731.64
  4. Step 4: Simplify right side
    83,971.68x = 5,299,344,485.94
  5. Step 5: Solve for x
    x = 5,299,344,485.94/83,971.68
  6. Step 6: Final answer
    x = 63,108.71

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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.