Home / 54,252.40-81,378.60-16,812.40

Finding the Fourth Proportional to 54,252.40, 81,378.60 and 16,812.40

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Solution

The fourth proportional to 54,252.40, 81,378.60 and 16,812.40 is: 25,218.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,252.40 : 81,378.60 = 16,812.40 : x
  2. Step 2: Convert to fraction form
    54,252.40/81,378.60 = 16,812.40/x
  3. Step 3: Cross multiply
    54,252.40x = 81,378.60 × 16,812.40
  4. Step 4: Simplify right side
    54,252.40x = 1,368,169,574.64
  5. Step 5: Solve for x
    x = 1,368,169,574.64/54,252.40
  6. Step 6: Final answer
    x = 25,218.60

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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.