Home / 42,125.22-63,156.61-19,912.65

Finding the Fourth Proportional to 42,125.22, 63,156.61 and 19,912.65

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Solution

The fourth proportional to 42,125.22, 63,156.61 and 19,912.65 is: 29,854.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,125.22 : 63,156.61 = 19,912.65 : x
  2. Step 2: Convert to fraction form
    42,125.22/63,156.61 = 19,912.65/x
  3. Step 3: Cross multiply
    42,125.22x = 63,156.61 × 19,912.65
  4. Step 4: Simplify right side
    42,125.22x = 1,257,615,470.12
  5. Step 5: Solve for x
    x = 1,257,615,470.12/42,125.22
  6. Step 6: Final answer
    x = 29,854.22

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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.