Home / 54,111.79-74,672.84-30,238.66

Finding the Fourth Proportional to 54,111.79, 74,672.84 and 30,238.66

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Solution

The fourth proportional to 54,111.79, 74,672.84 and 30,238.66 is: 41,728.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,111.79 : 74,672.84 = 30,238.66 : x
  2. Step 2: Convert to fraction form
    54,111.79/74,672.84 = 30,238.66/x
  3. Step 3: Cross multiply
    54,111.79x = 74,672.84 × 30,238.66
  4. Step 4: Simplify right side
    54,111.79x = 2,258,006,282.12
  5. Step 5: Solve for x
    x = 2,258,006,282.12/54,111.79
  6. Step 6: Final answer
    x = 41,728.55

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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.