Home / 77,976.11-116,946.92-21,801.11

Finding the Fourth Proportional to 77,976.11, 116,946.92 and 21,801.11

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Solution

The fourth proportional to 77,976.11, 116,946.92 and 21,801.11 is: 32,696.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,976.11 : 116,946.92 = 21,801.11 : x
  2. Step 2: Convert to fraction form
    77,976.11/116,946.92 = 21,801.11/x
  3. Step 3: Cross multiply
    77,976.11x = 116,946.92 × 21,801.11
  4. Step 4: Simplify right side
    77,976.11x = 2,549,572,667.08
  5. Step 5: Solve for x
    x = 2,549,572,667.08/77,976.11
  6. Step 6: Final answer
    x = 32,696.84

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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.