Home / 77,976.87-116,944.53-21,813.49

Finding the Fourth Proportional to 77,976.87, 116,944.53 and 21,813.49

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Solution

The fourth proportional to 77,976.87, 116,944.53 and 21,813.49 is: 32,714.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,976.87 : 116,944.53 = 21,813.49 : x
  2. Step 2: Convert to fraction form
    77,976.87/116,944.53 = 21,813.49/x
  3. Step 3: Cross multiply
    77,976.87x = 116,944.53 × 21,813.49
  4. Step 4: Simplify right side
    77,976.87x = 2,550,968,335.71
  5. Step 5: Solve for x
    x = 2,550,968,335.71/77,976.87
  6. Step 6: Final answer
    x = 32,714.42

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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.