Home / 90,422.76-124,782.80-50,136.54

Finding the Fourth Proportional to 90,422.76, 124,782.80 and 50,136.54

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Solution

The fourth proportional to 90,422.76, 124,782.80 and 50,136.54 is: 69,188.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,422.76 : 124,782.80 = 50,136.54 : x
  2. Step 2: Convert to fraction form
    90,422.76/124,782.80 = 50,136.54/x
  3. Step 3: Cross multiply
    90,422.76x = 124,782.80 × 50,136.54
  4. Step 4: Simplify right side
    90,422.76x = 6,256,177,592.83
  5. Step 5: Solve for x
    x = 6,256,177,592.83/90,422.76
  6. Step 6: Final answer
    x = 69,188.08

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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.