Home / 54,147.08-81,216.98-19,082.18

Finding the Fourth Proportional to 54,147.08, 81,216.98 and 19,082.18

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Solution

The fourth proportional to 54,147.08, 81,216.98 and 19,082.18 is: 28,621.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,147.08 : 81,216.98 = 19,082.18 : x
  2. Step 2: Convert to fraction form
    54,147.08/81,216.98 = 19,082.18/x
  3. Step 3: Cross multiply
    54,147.08x = 81,216.98 × 19,082.18
  4. Step 4: Simplify right side
    54,147.08x = 1,549,797,210.61
  5. Step 5: Solve for x
    x = 1,549,797,210.61/54,147.08
  6. Step 6: Final answer
    x = 28,621.99

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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.