Home / 91,418.77-137,180.55-49,298.68

Finding the Fourth Proportional to 91,418.77, 137,180.55 and 49,298.68

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Solution

The fourth proportional to 91,418.77, 137,180.55 and 49,298.68 is: 73,976.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,418.77 : 137,180.55 = 49,298.68 : x
  2. Step 2: Convert to fraction form
    91,418.77/137,180.55 = 49,298.68/x
  3. Step 3: Cross multiply
    91,418.77x = 137,180.55 × 49,298.68
  4. Step 4: Simplify right side
    91,418.77x = 6,762,819,350.77
  5. Step 5: Solve for x
    x = 6,762,819,350.77/91,418.77
  6. Step 6: Final answer
    x = 73,976.27

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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.