Home / 54,278.10-81,307.80-30,877.20

Finding the Fourth Proportional to 54,278.10, 81,307.80 and 30,877.20

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Solution

The fourth proportional to 54,278.10, 81,307.80 and 30,877.20 is: 46,253.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,278.10 : 81,307.80 = 30,877.20 : x
  2. Step 2: Convert to fraction form
    54,278.10/81,307.80 = 30,877.20/x
  3. Step 3: Cross multiply
    54,278.10x = 81,307.80 × 30,877.20
  4. Step 4: Simplify right side
    54,278.10x = 2,510,557,202.16
  5. Step 5: Solve for x
    x = 2,510,557,202.16/54,278.10
  6. Step 6: Final answer
    x = 46,253.59

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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.