Home / 90,914.25-136,307.97-40,285.74

Finding the Fourth Proportional to 90,914.25, 136,307.97 and 40,285.74

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Solution

The fourth proportional to 90,914.25, 136,307.97 and 40,285.74 is: 60,400.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,914.25 : 136,307.97 = 40,285.74 : x
  2. Step 2: Convert to fraction form
    90,914.25/136,307.97 = 40,285.74/x
  3. Step 3: Cross multiply
    90,914.25x = 136,307.97 × 40,285.74
  4. Step 4: Simplify right side
    90,914.25x = 5,491,266,556.38
  5. Step 5: Solve for x
    x = 5,491,266,556.38/90,914.25
  6. Step 6: Final answer
    x = 60,400.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.