Home / 77,634.14-116,451.21-61,978.46

Finding the Fourth Proportional to 77,634.14, 116,451.21 and 61,978.46

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Solution

The fourth proportional to 77,634.14, 116,451.21 and 61,978.46 is: 92,967.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,634.14 : 116,451.21 = 61,978.46 : x
  2. Step 2: Convert to fraction form
    77,634.14/116,451.21 = 61,978.46/x
  3. Step 3: Cross multiply
    77,634.14x = 116,451.21 × 61,978.46
  4. Step 4: Simplify right side
    77,634.14x = 7,217,466,660.94
  5. Step 5: Solve for x
    x = 7,217,466,660.94/77,634.14
  6. Step 6: Final answer
    x = 92,967.69

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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.