Home / 98,080.23-135,346.62-55,646.76

Finding the Fourth Proportional to 98,080.23, 135,346.62 and 55,646.76

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Solution

The fourth proportional to 98,080.23, 135,346.62 and 55,646.76 is: 76,790.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,080.23 : 135,346.62 = 55,646.76 : x
  2. Step 2: Convert to fraction form
    98,080.23/135,346.62 = 55,646.76/x
  3. Step 3: Cross multiply
    98,080.23x = 135,346.62 × 55,646.76
  4. Step 4: Simplify right side
    98,080.23x = 7,531,600,879.95
  5. Step 5: Solve for x
    x = 7,531,600,879.95/98,080.23
  6. Step 6: Final answer
    x = 76,790.20

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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.