Home / 53,921.80-80,885.10-18,382.60

Finding the Fourth Proportional to 53,921.80, 80,885.10 and 18,382.60

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Solution

The fourth proportional to 53,921.80, 80,885.10 and 18,382.60 is: 27,574.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,921.80 : 80,885.10 = 18,382.60 : x
  2. Step 2: Convert to fraction form
    53,921.80/80,885.10 = 18,382.60/x
  3. Step 3: Cross multiply
    53,921.80x = 80,885.10 × 18,382.60
  4. Step 4: Simplify right side
    53,921.80x = 1,486,878,439.26
  5. Step 5: Solve for x
    x = 1,486,878,439.26/53,921.80
  6. Step 6: Final answer
    x = 27,574.72

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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.