Home / 54,320.30-81,480.45-19,255.40

Finding the Fourth Proportional to 54,320.30, 81,480.45 and 19,255.40

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Solution

The fourth proportional to 54,320.30, 81,480.45 and 19,255.40 is: 28,883.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,320.30 : 81,480.45 = 19,255.40 : x
  2. Step 2: Convert to fraction form
    54,320.30/81,480.45 = 19,255.40/x
  3. Step 3: Cross multiply
    54,320.30x = 81,480.45 × 19,255.40
  4. Step 4: Simplify right side
    54,320.30x = 1,568,938,656.93
  5. Step 5: Solve for x
    x = 1,568,938,656.93/54,320.30
  6. Step 6: Final answer
    x = 28,883.10

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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.