Home / 98,082.54-135,349.92-55,640.16

Finding the Fourth Proportional to 98,082.54, 135,349.92 and 55,640.16

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Solution

The fourth proportional to 98,082.54, 135,349.92 and 55,640.16 is: 76,781.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,082.54 : 135,349.92 = 55,640.16 : x
  2. Step 2: Convert to fraction form
    98,082.54/135,349.92 = 55,640.16/x
  3. Step 3: Cross multiply
    98,082.54x = 135,349.92 × 55,640.16
  4. Step 4: Simplify right side
    98,082.54x = 7,530,891,204.79
  5. Step 5: Solve for x
    x = 7,530,891,204.79/98,082.54
  6. Step 6: Final answer
    x = 76,781.16

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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.