Home / 98,382.11-135,756.84-55,360.85

Finding the Fourth Proportional to 98,382.11, 135,756.84 and 55,360.85

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Solution

The fourth proportional to 98,382.11, 135,756.84 and 55,360.85 is: 76,392.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,382.11 : 135,756.84 = 55,360.85 : x
  2. Step 2: Convert to fraction form
    98,382.11/135,756.84 = 55,360.85/x
  3. Step 3: Cross multiply
    98,382.11x = 135,756.84 × 55,360.85
  4. Step 4: Simplify right side
    98,382.11x = 7,515,613,810.65
  5. Step 5: Solve for x
    x = 7,515,613,810.65/98,382.11
  6. Step 6: Final answer
    x = 76,392.08

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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.