Home / 98,132.45-135,429.77-55,693.71

Finding the Fourth Proportional to 98,132.45, 135,429.77 and 55,693.71

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Solution

The fourth proportional to 98,132.45, 135,429.77 and 55,693.71 is: 76,861.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,132.45 : 135,429.77 = 55,693.71 : x
  2. Step 2: Convert to fraction form
    98,132.45/135,429.77 = 55,693.71/x
  3. Step 3: Cross multiply
    98,132.45x = 135,429.77 × 55,693.71
  4. Step 4: Simplify right side
    98,132.45x = 7,542,586,474.98
  5. Step 5: Solve for x
    x = 7,542,586,474.98/98,132.45
  6. Step 6: Final answer
    x = 76,861.29

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1.5x scale

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.