Home / 90,396.15-124,738.85-51,633.80

Finding the Fourth Proportional to 90,396.15, 124,738.85 and 51,633.80

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Solution

The fourth proportional to 90,396.15, 124,738.85 and 51,633.80 is: 71,250.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,396.15 : 124,738.85 = 51,633.80 : x
  2. Step 2: Convert to fraction form
    90,396.15/124,738.85 = 51,633.80/x
  3. Step 3: Cross multiply
    90,396.15x = 124,738.85 × 51,633.80
  4. Step 4: Simplify right side
    90,396.15x = 6,440,739,951.27
  5. Step 5: Solve for x
    x = 6,440,739,951.27/90,396.15
  6. Step 6: Final answer
    x = 71,250.16

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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.