Home / 83,716.54-115,528.35-45,989.98

Finding the Fourth Proportional to 83,716.54, 115,528.35 and 45,989.98

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Solution

The fourth proportional to 83,716.54, 115,528.35 and 45,989.98 is: 63,465.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,716.54 : 115,528.35 = 45,989.98 : x
  2. Step 2: Convert to fraction form
    83,716.54/115,528.35 = 45,989.98/x
  3. Step 3: Cross multiply
    83,716.54x = 115,528.35 × 45,989.98
  4. Step 4: Simplify right side
    83,716.54x = 5,313,146,505.93
  5. Step 5: Solve for x
    x = 5,313,146,505.93/83,716.54
  6. Step 6: Final answer
    x = 63,465.91

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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.