Home / 74,354.88-111,376.80-54,351.12

Finding the Fourth Proportional to 74,354.88, 111,376.80 and 54,351.12

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Solution

The fourth proportional to 74,354.88, 111,376.80 and 54,351.12 is: 81,413.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,354.88 : 111,376.80 = 54,351.12 : x
  2. Step 2: Convert to fraction form
    74,354.88/111,376.80 = 54,351.12/x
  3. Step 3: Cross multiply
    74,354.88x = 111,376.80 × 54,351.12
  4. Step 4: Simplify right side
    74,354.88x = 6,053,453,822.02
  5. Step 5: Solve for x
    x = 6,053,453,822.02/74,354.88
  6. Step 6: Final answer
    x = 81,413.00

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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.