Home / 89,433.87-123,416.30-49,147.65

Finding the Fourth Proportional to 89,433.87, 123,416.30 and 49,147.65

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Solution

The fourth proportional to 89,433.87, 123,416.30 and 49,147.65 is: 67,822.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,433.87 : 123,416.30 = 49,147.65 : x
  2. Step 2: Convert to fraction form
    89,433.87/123,416.30 = 49,147.65/x
  3. Step 3: Cross multiply
    89,433.87x = 123,416.30 × 49,147.65
  4. Step 4: Simplify right side
    89,433.87x = 6,065,620,870.96
  5. Step 5: Solve for x
    x = 6,065,620,870.96/89,433.87
  6. Step 6: Final answer
    x = 67,822.41

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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.