Home / 57,255.20-86,113.20-51,264.80

Finding the Fourth Proportional to 57,255.20, 86,113.20 and 51,264.80

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Solution

The fourth proportional to 57,255.20, 86,113.20 and 51,264.80 is: 77,103.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,255.20 : 86,113.20 = 51,264.80 : x
  2. Step 2: Convert to fraction form
    57,255.20/86,113.20 = 51,264.80/x
  3. Step 3: Cross multiply
    57,255.20x = 86,113.20 × 51,264.80
  4. Step 4: Simplify right side
    57,255.20x = 4,414,575,975.36
  5. Step 5: Solve for x
    x = 4,414,575,975.36/57,255.20
  6. Step 6: Final answer
    x = 77,103.49

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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.