Home / 42,105.08-63,149.34-19,915.26

Finding the Fourth Proportional to 42,105.08, 63,149.34 and 19,915.26

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Solution

The fourth proportional to 42,105.08, 63,149.34 and 19,915.26 is: 29,868.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,105.08 : 63,149.34 = 19,915.26 : x
  2. Step 2: Convert to fraction form
    42,105.08/63,149.34 = 19,915.26/x
  3. Step 3: Cross multiply
    42,105.08x = 63,149.34 × 19,915.26
  4. Step 4: Simplify right side
    42,105.08x = 1,257,635,524.93
  5. Step 5: Solve for x
    x = 1,257,635,524.93/42,105.08
  6. Step 6: Final answer
    x = 29,868.97

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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.