Home / 77,089.29-115,662.33-55,075.92

Finding the Fourth Proportional to 77,089.29, 115,662.33 and 55,075.92

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Solution

The fourth proportional to 77,089.29, 115,662.33 and 55,075.92 is: 82,634.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,089.29 : 115,662.33 = 55,075.92 : x
  2. Step 2: Convert to fraction form
    77,089.29/115,662.33 = 55,075.92/x
  3. Step 3: Cross multiply
    77,089.29x = 115,662.33 × 55,075.92
  4. Step 4: Simplify right side
    77,089.29x = 6,370,209,234.09
  5. Step 5: Solve for x
    x = 6,370,209,234.09/77,089.29
  6. Step 6: Final answer
    x = 82,634.17

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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.