Home / 63,126.88-87,240.48-51,778.72

Finding the Fourth Proportional to 63,126.88, 87,240.48 and 51,778.72

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Solution

The fourth proportional to 63,126.88, 87,240.48 and 51,778.72 is: 71,557.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,126.88 : 87,240.48 = 51,778.72 : x
  2. Step 2: Convert to fraction form
    63,126.88/87,240.48 = 51,778.72/x
  3. Step 3: Cross multiply
    63,126.88x = 87,240.48 × 51,778.72
  4. Step 4: Simplify right side
    63,126.88x = 4,517,200,386.59
  5. Step 5: Solve for x
    x = 4,517,200,386.59/63,126.88
  6. Step 6: Final answer
    x = 71,557.48

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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.