Home / 89,801.21-123,922.85-49,515.75

Finding the Fourth Proportional to 89,801.21, 123,922.85 and 49,515.75

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Solution

The fourth proportional to 89,801.21, 123,922.85 and 49,515.75 is: 68,330.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,801.21 : 123,922.85 = 49,515.75 : x
  2. Step 2: Convert to fraction form
    89,801.21/123,922.85 = 49,515.75/x
  3. Step 3: Cross multiply
    89,801.21x = 123,922.85 × 49,515.75
  4. Step 4: Simplify right side
    89,801.21x = 6,136,132,612.31
  5. Step 5: Solve for x
    x = 6,136,132,612.31/89,801.21
  6. Step 6: Final answer
    x = 68,330.18

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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.