Home / 83,837.07-115,688.25-49,376.43

Finding the Fourth Proportional to 83,837.07, 115,688.25 and 49,376.43

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Solution

The fourth proportional to 83,837.07, 115,688.25 and 49,376.43 is: 68,135.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,837.07 : 115,688.25 = 49,376.43 : x
  2. Step 2: Convert to fraction form
    83,837.07/115,688.25 = 49,376.43/x
  3. Step 3: Cross multiply
    83,837.07x = 115,688.25 × 49,376.43
  4. Step 4: Simplify right side
    83,837.07x = 5,712,272,777.95
  5. Step 5: Solve for x
    x = 5,712,272,777.95/83,837.07
  6. Step 6: Final answer
    x = 68,135.41

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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.