Home / 54,433.16-75,122.10-30,561.40

Finding the Fourth Proportional to 54,433.16, 75,122.10 and 30,561.40

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Solution

The fourth proportional to 54,433.16, 75,122.10 and 30,561.40 is: 42,177.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,433.16 : 75,122.10 = 30,561.40 : x
  2. Step 2: Convert to fraction form
    54,433.16/75,122.10 = 30,561.40/x
  3. Step 3: Cross multiply
    54,433.16x = 75,122.10 × 30,561.40
  4. Step 4: Simplify right side
    54,433.16x = 2,295,836,546.94
  5. Step 5: Solve for x
    x = 2,295,836,546.94/54,433.16
  6. Step 6: Final answer
    x = 42,177.17

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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.