Home / 54,213.72-74,818.23-30,339.90

Finding the Fourth Proportional to 54,213.72, 74,818.23 and 30,339.90

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Solution

The fourth proportional to 54,213.72, 74,818.23 and 30,339.90 is: 41,870.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,213.72 : 74,818.23 = 30,339.90 : x
  2. Step 2: Convert to fraction form
    54,213.72/74,818.23 = 30,339.90/x
  3. Step 3: Cross multiply
    54,213.72x = 74,818.23 × 30,339.90
  4. Step 4: Simplify right side
    54,213.72x = 2,269,977,616.38
  5. Step 5: Solve for x
    x = 2,269,977,616.38/54,213.72
  6. Step 6: Final answer
    x = 41,870.91

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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.