Home / 54,285.20-81,427.80-23,123.60

Finding the Fourth Proportional to 54,285.20, 81,427.80 and 23,123.60

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Solution

The fourth proportional to 54,285.20, 81,427.80 and 23,123.60 is: 34,685.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,285.20 : 81,427.80 = 23,123.60 : x
  2. Step 2: Convert to fraction form
    54,285.20/81,427.80 = 23,123.60/x
  3. Step 3: Cross multiply
    54,285.20x = 81,427.80 × 23,123.60
  4. Step 4: Simplify right side
    54,285.20x = 1,882,903,876.08
  5. Step 5: Solve for x
    x = 1,882,903,876.08/54,285.20
  6. Step 6: Final answer
    x = 34,685.40

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Similar ratio
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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.