Home / 98,276.13-135,621.17-55,842.86

Finding the Fourth Proportional to 98,276.13, 135,621.17 and 55,842.86

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Solution

The fourth proportional to 98,276.13, 135,621.17 and 55,842.86 is: 77,063.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,276.13 : 135,621.17 = 55,842.86 : x
  2. Step 2: Convert to fraction form
    98,276.13/135,621.17 = 55,842.86/x
  3. Step 3: Cross multiply
    98,276.13x = 135,621.17 × 55,842.86
  4. Step 4: Simplify right side
    98,276.13x = 7,573,474,278.60
  5. Step 5: Solve for x
    x = 7,573,474,278.60/98,276.13
  6. Step 6: Final answer
    x = 77,063.21

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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.