Home / 90,850.68-136,226.56-31,670.44

Finding the Fourth Proportional to 90,850.68, 136,226.56 and 31,670.44

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Solution

The fourth proportional to 90,850.68, 136,226.56 and 31,670.44 is: 47,488.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,850.68 : 136,226.56 = 31,670.44 : x
  2. Step 2: Convert to fraction form
    90,850.68/136,226.56 = 31,670.44/x
  3. Step 3: Cross multiply
    90,850.68x = 136,226.56 × 31,670.44
  4. Step 4: Simplify right side
    90,850.68x = 4,314,355,094.89
  5. Step 5: Solve for x
    x = 4,314,355,094.89/90,850.68
  6. Step 6: Final answer
    x = 47,488.42

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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.