Home / 77,350.35-116,025.62-21,190.95

Finding the Fourth Proportional to 77,350.35, 116,025.62 and 21,190.95

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Solution

The fourth proportional to 77,350.35, 116,025.62 and 21,190.95 is: 31,786.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,350.35 : 116,025.62 = 21,190.95 : x
  2. Step 2: Convert to fraction form
    77,350.35/116,025.62 = 21,190.95/x
  3. Step 3: Cross multiply
    77,350.35x = 116,025.62 × 21,190.95
  4. Step 4: Simplify right side
    77,350.35x = 2,458,693,165.12
  5. Step 5: Solve for x
    x = 2,458,693,165.12/77,350.35
  6. Step 6: Final answer
    x = 31,786.45

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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.