Home / 42,392.88-63,589.32-30,779.91

Finding the Fourth Proportional to 42,392.88, 63,589.32 and 30,779.91

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Solution

The fourth proportional to 42,392.88, 63,589.32 and 30,779.91 is: 46,169.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,392.88 : 63,589.32 = 30,779.91 : x
  2. Step 2: Convert to fraction form
    42,392.88/63,589.32 = 30,779.91/x
  3. Step 3: Cross multiply
    42,392.88x = 63,589.32 × 30,779.91
  4. Step 4: Simplify right side
    42,392.88x = 1,957,273,546.56
  5. Step 5: Solve for x
    x = 1,957,273,546.56/42,392.88
  6. Step 6: Final answer
    x = 46,169.87

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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.