Home / 89,181.32-133,785.80-30,012.38

Finding the Fourth Proportional to 89,181.32, 133,785.80 and 30,012.38

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Solution

The fourth proportional to 89,181.32, 133,785.80 and 30,012.38 is: 45,023.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,181.32 : 133,785.80 = 30,012.38 : x
  2. Step 2: Convert to fraction form
    89,181.32/133,785.80 = 30,012.38/x
  3. Step 3: Cross multiply
    89,181.32x = 133,785.80 × 30,012.38
  4. Step 4: Simplify right side
    89,181.32x = 4,015,229,449.21
  5. Step 5: Solve for x
    x = 4,015,229,449.21/89,181.32
  6. Step 6: Final answer
    x = 45,023.21

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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.