Home / 98,034.96-135,319.08-55,621.68

Finding the Fourth Proportional to 98,034.96, 135,319.08 and 55,621.68

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Solution

The fourth proportional to 98,034.96, 135,319.08 and 55,621.68 is: 76,775.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,034.96 : 135,319.08 = 55,621.68 : x
  2. Step 2: Convert to fraction form
    98,034.96/135,319.08 = 55,621.68/x
  3. Step 3: Cross multiply
    98,034.96x = 135,319.08 × 55,621.68
  4. Step 4: Simplify right side
    98,034.96x = 7,526,674,565.65
  5. Step 5: Solve for x
    x = 7,526,674,565.65/98,034.96
  6. Step 6: Final answer
    x = 76,775.41

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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.