Home / 81,540.47-112,526.99-49,270.61

Finding the Fourth Proportional to 81,540.47, 112,526.99 and 49,270.61

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Solution

The fourth proportional to 81,540.47, 112,526.99 and 49,270.61 is: 67,994.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,540.47 : 112,526.99 = 49,270.61 : x
  2. Step 2: Convert to fraction form
    81,540.47/112,526.99 = 49,270.61/x
  3. Step 3: Cross multiply
    81,540.47x = 112,526.99 × 49,270.61
  4. Step 4: Simplify right side
    81,540.47x = 5,544,273,438.76
  5. Step 5: Solve for x
    x = 5,544,273,438.76/81,540.47
  6. Step 6: Final answer
    x = 67,994.13

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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.