Home / 77,966.18-116,941.98-21,811.34

Finding the Fourth Proportional to 77,966.18, 116,941.98 and 21,811.34

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Solution

The fourth proportional to 77,966.18, 116,941.98 and 21,811.34 is: 32,714.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,966.18 : 116,941.98 = 21,811.34 : x
  2. Step 2: Convert to fraction form
    77,966.18/116,941.98 = 21,811.34/x
  3. Step 3: Cross multiply
    77,966.18x = 116,941.98 × 21,811.34
  4. Step 4: Simplify right side
    77,966.18x = 2,550,661,286.05
  5. Step 5: Solve for x
    x = 2,550,661,286.05/77,966.18
  6. Step 6: Final answer
    x = 32,714.97

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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.