Home / 83,438.66-115,145.46-45,198.63

Finding the Fourth Proportional to 83,438.66, 115,145.46 and 45,198.63

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Solution

The fourth proportional to 83,438.66, 115,145.46 and 45,198.63 is: 62,374.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,438.66 : 115,145.46 = 45,198.63 : x
  2. Step 2: Convert to fraction form
    83,438.66/115,145.46 = 45,198.63/x
  3. Step 3: Cross multiply
    83,438.66x = 115,145.46 × 45,198.63
  4. Step 4: Simplify right side
    83,438.66x = 5,204,417,042.72
  5. Step 5: Solve for x
    x = 5,204,417,042.72/83,438.66
  6. Step 6: Final answer
    x = 62,374.17

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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.