Home / 90,480.47-135,632.45-43,082.82

Finding the Fourth Proportional to 90,480.47, 135,632.45 and 43,082.82

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Solution

The fourth proportional to 90,480.47, 135,632.45 and 43,082.82 is: 64,582.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,480.47 : 135,632.45 = 43,082.82 : x
  2. Step 2: Convert to fraction form
    90,480.47/135,632.45 = 43,082.82/x
  3. Step 3: Cross multiply
    90,480.47x = 135,632.45 × 43,082.82
  4. Step 4: Simplify right side
    90,480.47x = 5,843,428,629.97
  5. Step 5: Solve for x
    x = 5,843,428,629.97/90,480.47
  6. Step 6: Final answer
    x = 64,582.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.