Home / 54,154.40-74,732.56-30,280.80

Finding the Fourth Proportional to 54,154.40, 74,732.56 and 30,280.80

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Solution

The fourth proportional to 54,154.40, 74,732.56 and 30,280.80 is: 41,787.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,154.40 : 74,732.56 = 30,280.80 : x
  2. Step 2: Convert to fraction form
    54,154.40/74,732.56 = 30,280.80/x
  3. Step 3: Cross multiply
    54,154.40x = 74,732.56 × 30,280.80
  4. Step 4: Simplify right side
    54,154.40x = 2,262,961,702.85
  5. Step 5: Solve for x
    x = 2,262,961,702.85/54,154.40
  6. Step 6: Final answer
    x = 41,787.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.