Home / 54,174.95-81,209.12-31,657.06

Finding the Fourth Proportional to 54,174.95, 81,209.12 and 31,657.06

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Solution

The fourth proportional to 54,174.95, 81,209.12 and 31,657.06 is: 47,454.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,174.95 : 81,209.12 = 31,657.06 : x
  2. Step 2: Convert to fraction form
    54,174.95/81,209.12 = 31,657.06/x
  3. Step 3: Cross multiply
    54,174.95x = 81,209.12 × 31,657.06
  4. Step 4: Simplify right side
    54,174.95x = 2,570,841,623.08
  5. Step 5: Solve for x
    x = 2,570,841,623.08/54,174.95
  6. Step 6: Final answer
    x = 47,454.43

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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.