Home / 77,640.14-116,460.22-61,984.46

Finding the Fourth Proportional to 77,640.14, 116,460.22 and 61,984.46

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Solution

The fourth proportional to 77,640.14, 116,460.22 and 61,984.46 is: 92,976.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,640.14 : 116,460.22 = 61,984.46 : x
  2. Step 2: Convert to fraction form
    77,640.14/116,460.22 = 61,984.46/x
  3. Step 3: Cross multiply
    77,640.14x = 116,460.22 × 61,984.46
  4. Step 4: Simplify right side
    77,640.14x = 7,218,723,848.18
  5. Step 5: Solve for x
    x = 7,218,723,848.18/77,640.14
  6. Step 6: Final answer
    x = 92,976.70

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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.