Home / 49,871.13-74,841.77-45,106.81

Finding the Fourth Proportional to 49,871.13, 74,841.77 and 45,106.81

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Solution

The fourth proportional to 49,871.13, 74,841.77 and 45,106.81 is: 67,691.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,871.13 : 74,841.77 = 45,106.81 : x
  2. Step 2: Convert to fraction form
    49,871.13/74,841.77 = 45,106.81/x
  3. Step 3: Cross multiply
    49,871.13x = 74,841.77 × 45,106.81
  4. Step 4: Simplify right side
    49,871.13x = 3,375,873,425.12
  5. Step 5: Solve for x
    x = 3,375,873,425.12/49,871.13
  6. Step 6: Final answer
    x = 67,691.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.