Home / 91,579.68-126,086.22-71,410.68

Finding the Fourth Proportional to 91,579.68, 126,086.22 and 71,410.68

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Solution

The fourth proportional to 91,579.68, 126,086.22 and 71,410.68 is: 98,317.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,579.68 : 126,086.22 = 71,410.68 : x
  2. Step 2: Convert to fraction form
    91,579.68/126,086.22 = 71,410.68/x
  3. Step 3: Cross multiply
    91,579.68x = 126,086.22 × 71,410.68
  4. Step 4: Simplify right side
    91,579.68x = 9,003,902,708.83
  5. Step 5: Solve for x
    x = 9,003,902,708.83/91,579.68
  6. Step 6: Final answer
    x = 98,317.69

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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.