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Finding the Fourth Proportional to 54,008.60, 81,002.10 and 25,928.60

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Solution

The fourth proportional to 54,008.60, 81,002.10 and 25,928.60 is: 38,887.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,008.60 : 81,002.10 = 25,928.60 : x
  2. Step 2: Convert to fraction form
    54,008.60/81,002.10 = 25,928.60/x
  3. Step 3: Cross multiply
    54,008.60x = 81,002.10 × 25,928.60
  4. Step 4: Simplify right side
    54,008.60x = 2,100,271,050.06
  5. Step 5: Solve for x
    x = 2,100,271,050.06/54,008.60
  6. Step 6: Final answer
    x = 38,887.72

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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.