Home / 98,079.23-135,345.24-55,645.76

Finding the Fourth Proportional to 98,079.23, 135,345.24 and 55,645.76

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Solution

The fourth proportional to 98,079.23, 135,345.24 and 55,645.76 is: 76,788.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,079.23 : 135,345.24 = 55,645.76 : x
  2. Step 2: Convert to fraction form
    98,079.23/135,345.24 = 55,645.76/x
  3. Step 3: Cross multiply
    98,079.23x = 135,345.24 × 55,645.76
  4. Step 4: Simplify right side
    98,079.23x = 7,531,388,065.46
  5. Step 5: Solve for x
    x = 7,531,388,065.46/98,079.23
  6. Step 6: Final answer
    x = 76,788.82

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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.