Home / 54,306.08-81,431.60-19,240.80

Finding the Fourth Proportional to 54,306.08, 81,431.60 and 19,240.80

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Solution

The fourth proportional to 54,306.08, 81,431.60 and 19,240.80 is: 28,851.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,306.08 : 81,431.60 = 19,240.80 : x
  2. Step 2: Convert to fraction form
    54,306.08/81,431.60 = 19,240.80/x
  3. Step 3: Cross multiply
    54,306.08x = 81,431.60 × 19,240.80
  4. Step 4: Simplify right side
    54,306.08x = 1,566,809,129.28
  5. Step 5: Solve for x
    x = 1,566,809,129.28/54,306.08
  6. Step 6: Final answer
    x = 28,851.45

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1.5x scale

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.