Home / 77,352.39-116,028.66-21,192.98

Finding the Fourth Proportional to 77,352.39, 116,028.66 and 21,192.98

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Solution

The fourth proportional to 77,352.39, 116,028.66 and 21,192.98 is: 31,789.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,352.39 : 116,028.66 = 21,192.98 : x
  2. Step 2: Convert to fraction form
    77,352.39/116,028.66 = 21,192.98/x
  3. Step 3: Cross multiply
    77,352.39x = 116,028.66 × 21,192.98
  4. Step 4: Simplify right side
    77,352.39x = 2,458,992,490.66
  5. Step 5: Solve for x
    x = 2,458,992,490.66/77,352.39
  6. Step 6: Final answer
    x = 31,789.48

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1.5x scale

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.