Home / 83,421.43-115,121.62-45,696.31

Finding the Fourth Proportional to 83,421.43, 115,121.62 and 45,696.31

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Solution

The fourth proportional to 83,421.43, 115,121.62 and 45,696.31 is: 63,060.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,421.43 : 115,121.62 = 45,696.31 : x
  2. Step 2: Convert to fraction form
    83,421.43/115,121.62 = 45,696.31/x
  3. Step 3: Cross multiply
    83,421.43x = 115,121.62 × 45,696.31
  4. Step 4: Simplify right side
    83,421.43x = 5,260,633,235.22
  5. Step 5: Solve for x
    x = 5,260,633,235.22/83,421.43
  6. Step 6: Final answer
    x = 63,060.93

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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.