Home / 54,285.48-74,915.28-30,417.30

Finding the Fourth Proportional to 54,285.48, 74,915.28 and 30,417.30

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Solution

The fourth proportional to 54,285.48, 74,915.28 and 30,417.30 is: 41,976.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,285.48 : 74,915.28 = 30,417.30 : x
  2. Step 2: Convert to fraction form
    54,285.48/74,915.28 = 30,417.30/x
  3. Step 3: Cross multiply
    54,285.48x = 74,915.28 × 30,417.30
  4. Step 4: Simplify right side
    54,285.48x = 2,278,720,546.34
  5. Step 5: Solve for x
    x = 2,278,720,546.34/54,285.48
  6. Step 6: Final answer
    x = 41,976.61

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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.