Home / 83,756.45-115,584.36-45,516.31

Finding the Fourth Proportional to 83,756.45, 115,584.36 and 45,516.31

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Solution

The fourth proportional to 83,756.45, 115,584.36 and 45,516.31 is: 62,812.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,756.45 : 115,584.36 = 45,516.31 : x
  2. Step 2: Convert to fraction form
    83,756.45/115,584.36 = 45,516.31/x
  3. Step 3: Cross multiply
    83,756.45x = 115,584.36 × 45,516.31
  4. Step 4: Simplify right side
    83,756.45x = 5,260,973,560.91
  5. Step 5: Solve for x
    x = 5,260,973,560.91/83,756.45
  6. Step 6: Final answer
    x = 62,812.76

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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.