Home / 77,972.36-107,601.62-42,162.26

Finding the Fourth Proportional to 77,972.36, 107,601.62 and 42,162.26

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Solution

The fourth proportional to 77,972.36, 107,601.62 and 42,162.26 is: 58,183.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,972.36 : 107,601.62 = 42,162.26 : x
  2. Step 2: Convert to fraction form
    77,972.36/107,601.62 = 42,162.26/x
  3. Step 3: Cross multiply
    77,972.36x = 107,601.62 × 42,162.26
  4. Step 4: Simplify right side
    77,972.36x = 4,536,727,478.86
  5. Step 5: Solve for x
    x = 4,536,727,478.86/77,972.36
  6. Step 6: Final answer
    x = 58,183.79

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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.