Home / 83,650.52-115,430.04-49,653.20

Finding the Fourth Proportional to 83,650.52, 115,430.04 and 49,653.20

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Solution

The fourth proportional to 83,650.52, 115,430.04 and 49,653.20 is: 68,516.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,650.52 : 115,430.04 = 49,653.20 : x
  2. Step 2: Convert to fraction form
    83,650.52/115,430.04 = 49,653.20/x
  3. Step 3: Cross multiply
    83,650.52x = 115,430.04 × 49,653.20
  4. Step 4: Simplify right side
    83,650.52x = 5,731,470,284.98
  5. Step 5: Solve for x
    x = 5,731,470,284.98/83,650.52
  6. Step 6: Final answer
    x = 68,516.86

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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.