Home / 42,126.35-63,040.82-39,728.48

Finding the Fourth Proportional to 42,126.35, 63,040.82 and 39,728.48

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Solution

The fourth proportional to 42,126.35, 63,040.82 and 39,728.48 is: 59,452.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,126.35 : 63,040.82 = 39,728.48 : x
  2. Step 2: Convert to fraction form
    42,126.35/63,040.82 = 39,728.48/x
  3. Step 3: Cross multiply
    42,126.35x = 63,040.82 × 39,728.48
  4. Step 4: Simplify right side
    42,126.35x = 2,504,515,442.71
  5. Step 5: Solve for x
    x = 2,504,515,442.71/42,126.35
  6. Step 6: Final answer
    x = 59,452.47

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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.