Home / 90,399.32-124,737.96-50,113.07

Finding the Fourth Proportional to 90,399.32, 124,737.96 and 50,113.07

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Solution

The fourth proportional to 90,399.32, 124,737.96 and 50,113.07 is: 69,148.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,399.32 : 124,737.96 = 50,113.07 : x
  2. Step 2: Convert to fraction form
    90,399.32/124,737.96 = 50,113.07/x
  3. Step 3: Cross multiply
    90,399.32x = 124,737.96 × 50,113.07
  4. Step 4: Simplify right side
    90,399.32x = 6,251,002,121.14
  5. Step 5: Solve for x
    x = 6,251,002,121.14/90,399.32
  6. Step 6: Final answer
    x = 69,148.77

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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.