Home / 89,509.78-123,521.11-49,227.67

Finding the Fourth Proportional to 89,509.78, 123,521.11 and 49,227.67

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Solution

The fourth proportional to 89,509.78, 123,521.11 and 49,227.67 is: 67,932.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,509.78 : 123,521.11 = 49,227.67 : x
  2. Step 2: Convert to fraction form
    89,509.78/123,521.11 = 49,227.67/x
  3. Step 3: Cross multiply
    89,509.78x = 123,521.11 × 49,227.67
  4. Step 4: Simplify right side
    89,509.78x = 6,080,656,441.11
  5. Step 5: Solve for x
    x = 6,080,656,441.11/89,509.78
  6. Step 6: Final answer
    x = 67,932.87

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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.