Home / 54,151.46-74,728.76-30,278.13

Finding the Fourth Proportional to 54,151.46, 74,728.76 and 30,278.13

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Solution

The fourth proportional to 54,151.46, 74,728.76 and 30,278.13 is: 41,783.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,151.46 : 74,728.76 = 30,278.13 : x
  2. Step 2: Convert to fraction form
    54,151.46/74,728.76 = 30,278.13/x
  3. Step 3: Cross multiply
    54,151.46x = 74,728.76 × 30,278.13
  4. Step 4: Simplify right side
    54,151.46x = 2,262,647,110.02
  5. Step 5: Solve for x
    x = 2,262,647,110.02/54,151.46
  6. Step 6: Final answer
    x = 41,783.68

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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.