Home / 90,816.77-136,219.67-33,879.71

Finding the Fourth Proportional to 90,816.77, 136,219.67 and 33,879.71

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Solution

The fourth proportional to 90,816.77, 136,219.67 and 33,879.71 is: 50,817.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,816.77 : 136,219.67 = 33,879.71 : x
  2. Step 2: Convert to fraction form
    90,816.77/136,219.67 = 33,879.71/x
  3. Step 3: Cross multiply
    90,816.77x = 136,219.67 × 33,879.71
  4. Step 4: Simplify right side
    90,816.77x = 4,615,082,065.40
  5. Step 5: Solve for x
    x = 4,615,082,065.40/90,816.77
  6. Step 6: Final answer
    x = 50,817.51

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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.