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Finding the Fourth Proportional to 90,395.56, 124,745.88 and 50,651.56

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Solution

The fourth proportional to 90,395.56, 124,745.88 and 50,651.56 is: 69,899.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,395.56 : 124,745.88 = 50,651.56 : x
  2. Step 2: Convert to fraction form
    90,395.56/124,745.88 = 50,651.56/x
  3. Step 3: Cross multiply
    90,395.56x = 124,745.88 × 50,651.56
  4. Step 4: Simplify right side
    90,395.56x = 6,318,573,425.57
  5. Step 5: Solve for x
    x = 6,318,573,425.57/90,395.56
  6. Step 6: Final answer
    x = 69,899.16

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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.