Home / 76,811.94-115,020.27-61,748.10

Finding the Fourth Proportional to 76,811.94, 115,020.27 and 61,748.10

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Solution

The fourth proportional to 76,811.94, 115,020.27 and 61,748.10 is: 92,463.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,811.94 : 115,020.27 = 61,748.10 : x
  2. Step 2: Convert to fraction form
    76,811.94/115,020.27 = 61,748.10/x
  3. Step 3: Cross multiply
    76,811.94x = 115,020.27 × 61,748.10
  4. Step 4: Simplify right side
    76,811.94x = 7,102,283,133.99
  5. Step 5: Solve for x
    x = 7,102,283,133.99/76,811.94
  6. Step 6: Final answer
    x = 92,463.27

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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.