Home / 83,949.81-115,815.38-55,606.29

Finding the Fourth Proportional to 83,949.81, 115,815.38 and 55,606.29

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Solution

The fourth proportional to 83,949.81, 115,815.38 and 55,606.29 is: 76,713.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,949.81 : 115,815.38 = 55,606.29 : x
  2. Step 2: Convert to fraction form
    83,949.81/115,815.38 = 55,606.29/x
  3. Step 3: Cross multiply
    83,949.81x = 115,815.38 × 55,606.29
  4. Step 4: Simplify right side
    83,949.81x = 6,440,063,606.74
  5. Step 5: Solve for x
    x = 6,440,063,606.74/83,949.81
  6. Step 6: Final answer
    x = 76,713.26

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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.