Home / 90,399.18-124,737.78-50,112.94

Finding the Fourth Proportional to 90,399.18, 124,737.78 and 50,112.94

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Solution

The fourth proportional to 90,399.18, 124,737.78 and 50,112.94 is: 69,148.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,399.18 : 124,737.78 = 50,112.94 : x
  2. Step 2: Convert to fraction form
    90,399.18/124,737.78 = 50,112.94/x
  3. Step 3: Cross multiply
    90,399.18x = 124,737.78 × 50,112.94
  4. Step 4: Simplify right side
    90,399.18x = 6,250,976,884.87
  5. Step 5: Solve for x
    x = 6,250,976,884.87/90,399.18
  6. Step 6: Final answer
    x = 69,148.60

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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.