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Finding the Fourth Proportional to 90,199.26, 124,500 and 52,480.80

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Solution

The fourth proportional to 90,199.26, 124,500 and 52,480.80 is: 72,438.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,199.26 : 124,500 = 52,480.80 : x
  2. Step 2: Convert to fraction form
    90,199.26/124,500 = 52,480.80/x
  3. Step 3: Cross multiply
    90,199.26x = 124,500 × 52,480.80
  4. Step 4: Simplify right side
    90,199.26x = 6,533,859,600
  5. Step 5: Solve for x
    x = 6,533,859,600/90,199.26
  6. Step 6: Final answer
    x = 72,438.06

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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.