Home / 77,436.68-116,226.32-47,912.20

Finding the Fourth Proportional to 77,436.68, 116,226.32 and 47,912.20

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Solution

The fourth proportional to 77,436.68, 116,226.32 and 47,912.20 is: 71,912.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,436.68 : 116,226.32 = 47,912.20 : x
  2. Step 2: Convert to fraction form
    77,436.68/116,226.32 = 47,912.20/x
  3. Step 3: Cross multiply
    77,436.68x = 116,226.32 × 47,912.20
  4. Step 4: Simplify right side
    77,436.68x = 5,568,658,689.10
  5. Step 5: Solve for x
    x = 5,568,658,689.10/77,436.68
  6. Step 6: Final answer
    x = 71,912.42

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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.