Home / 77,087.19-115,629.42-39,625.25

Finding the Fourth Proportional to 77,087.19, 115,629.42 and 39,625.25

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Solution

The fourth proportional to 77,087.19, 115,629.42 and 39,625.25 is: 59,437.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,087.19 : 115,629.42 = 39,625.25 : x
  2. Step 2: Convert to fraction form
    77,087.19/115,629.42 = 39,625.25/x
  3. Step 3: Cross multiply
    77,087.19x = 115,629.42 × 39,625.25
  4. Step 4: Simplify right side
    77,087.19x = 4,581,844,895.72
  5. Step 5: Solve for x
    x = 4,581,844,895.72/77,087.19
  6. Step 6: Final answer
    x = 59,437.17

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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.