Home / 54,278.18-74,895.18-30,405.86

Finding the Fourth Proportional to 54,278.18, 74,895.18 and 30,405.86

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Solution

The fourth proportional to 54,278.18, 74,895.18 and 30,405.86 is: 41,955.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,278.18 : 74,895.18 = 30,405.86 : x
  2. Step 2: Convert to fraction form
    54,278.18/74,895.18 = 30,405.86/x
  3. Step 3: Cross multiply
    54,278.18x = 74,895.18 × 30,405.86
  4. Step 4: Simplify right side
    54,278.18x = 2,277,252,357.75
  5. Step 5: Solve for x
    x = 2,277,252,357.75/54,278.18
  6. Step 6: Final answer
    x = 41,955.21

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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.