Home / 77,727.87-107,247.06-45,879.75

Finding the Fourth Proportional to 77,727.87, 107,247.06 and 45,879.75

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Solution

The fourth proportional to 77,727.87, 107,247.06 and 45,879.75 is: 63,303.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,727.87 : 107,247.06 = 45,879.75 : x
  2. Step 2: Convert to fraction form
    77,727.87/107,247.06 = 45,879.75/x
  3. Step 3: Cross multiply
    77,727.87x = 107,247.06 × 45,879.75
  4. Step 4: Simplify right side
    77,727.87x = 4,920,468,301.04
  5. Step 5: Solve for x
    x = 4,920,468,301.04/77,727.87
  6. Step 6: Final answer
    x = 63,303.78

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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.