Home / 54,603.06-81,917.55-28,320.18

Finding the Fourth Proportional to 54,603.06, 81,917.55 and 28,320.18

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Solution

The fourth proportional to 54,603.06, 81,917.55 and 28,320.18 is: 42,486.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,603.06 : 81,917.55 = 28,320.18 : x
  2. Step 2: Convert to fraction form
    54,603.06/81,917.55 = 28,320.18/x
  3. Step 3: Cross multiply
    54,603.06x = 81,917.55 × 28,320.18
  4. Step 4: Simplify right side
    54,603.06x = 2,319,919,761.16
  5. Step 5: Solve for x
    x = 2,319,919,761.16/54,603.06
  6. Step 6: Final answer
    x = 42,486.99

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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.