Home / 77,680.80-116,440.39-52,722.88

Finding the Fourth Proportional to 77,680.80, 116,440.39 and 52,722.88

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Solution

The fourth proportional to 77,680.80, 116,440.39 and 52,722.88 is: 79,029.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,680.80 : 116,440.39 = 52,722.88 : x
  2. Step 2: Convert to fraction form
    77,680.80/116,440.39 = 52,722.88/x
  3. Step 3: Cross multiply
    77,680.80x = 116,440.39 × 52,722.88
  4. Step 4: Simplify right side
    77,680.80x = 6,139,072,709.12
  5. Step 5: Solve for x
    x = 6,139,072,709.12/77,680.80
  6. Step 6: Final answer
    x = 79,029.47

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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.