Home / 54,577.12-81,885.04-31,223.20

Finding the Fourth Proportional to 54,577.12, 81,885.04 and 31,223.20

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Solution

The fourth proportional to 54,577.12, 81,885.04 and 31,223.20 is: 46,845.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,577.12 : 81,885.04 = 31,223.20 : x
  2. Step 2: Convert to fraction form
    54,577.12/81,885.04 = 31,223.20/x
  3. Step 3: Cross multiply
    54,577.12x = 81,885.04 × 31,223.20
  4. Step 4: Simplify right side
    54,577.12x = 2,556,712,980.93
  5. Step 5: Solve for x
    x = 2,556,712,980.93/54,577.12
  6. Step 6: Final answer
    x = 46,845.88

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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.