Home / 54,647.28-81,972.95-19,101.65

Finding the Fourth Proportional to 54,647.28, 81,972.95 and 19,101.65

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Solution

The fourth proportional to 54,647.28, 81,972.95 and 19,101.65 is: 28,653.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,647.28 : 81,972.95 = 19,101.65 : x
  2. Step 2: Convert to fraction form
    54,647.28/81,972.95 = 19,101.65/x
  3. Step 3: Cross multiply
    54,647.28x = 81,972.95 × 19,101.65
  4. Step 4: Simplify right side
    54,647.28x = 1,565,818,406.13
  5. Step 5: Solve for x
    x = 1,565,818,406.13/54,647.28
  6. Step 6: Final answer
    x = 28,653.18

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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.