Home / 54,000.75-74,523.20-30,129.51

Finding the Fourth Proportional to 54,000.75, 74,523.20 and 30,129.51

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Solution

The fourth proportional to 54,000.75, 74,523.20 and 30,129.51 is: 41,579.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,000.75 : 74,523.20 = 30,129.51 : x
  2. Step 2: Convert to fraction form
    54,000.75/74,523.20 = 30,129.51/x
  3. Step 3: Cross multiply
    54,000.75x = 74,523.20 × 30,129.51
  4. Step 4: Simplify right side
    54,000.75x = 2,245,347,348.98
  5. Step 5: Solve for x
    x = 2,245,347,348.98/54,000.75
  6. Step 6: Final answer
    x = 41,579.93

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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.