Home / 83,960.64-115,867.20-45,721.32

Finding the Fourth Proportional to 83,960.64, 115,867.20 and 45,721.32

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Solution

The fourth proportional to 83,960.64, 115,867.20 and 45,721.32 is: 63,096.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,960.64 : 115,867.20 = 45,721.32 : x
  2. Step 2: Convert to fraction form
    83,960.64/115,867.20 = 45,721.32/x
  3. Step 3: Cross multiply
    83,960.64x = 115,867.20 × 45,721.32
  4. Step 4: Simplify right side
    83,960.64x = 5,297,601,328.70
  5. Step 5: Solve for x
    x = 5,297,601,328.70/83,960.64
  6. Step 6: Final answer
    x = 63,096.25

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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.