Home / 90,422.52-124,782.44-50,136.30

Finding the Fourth Proportional to 90,422.52, 124,782.44 and 50,136.30

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Solution

The fourth proportional to 90,422.52, 124,782.44 and 50,136.30 is: 69,187.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,422.52 : 124,782.44 = 50,136.30 : x
  2. Step 2: Convert to fraction form
    90,422.52/124,782.44 = 50,136.30/x
  3. Step 3: Cross multiply
    90,422.52x = 124,782.44 × 50,136.30
  4. Step 4: Simplify right side
    90,422.52x = 6,256,129,846.57
  5. Step 5: Solve for x
    x = 6,256,129,846.57/90,422.52
  6. Step 6: Final answer
    x = 69,187.74

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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.