Home / 92,811.15-127,982.57-55,078.11

Finding the Fourth Proportional to 92,811.15, 127,982.57 and 55,078.11

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Solution

The fourth proportional to 92,811.15, 127,982.57 and 55,078.11 is: 75,950.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,811.15 : 127,982.57 = 55,078.11 : x
  2. Step 2: Convert to fraction form
    92,811.15/127,982.57 = 55,078.11/x
  3. Step 3: Cross multiply
    92,811.15x = 127,982.57 × 55,078.11
  4. Step 4: Simplify right side
    92,811.15x = 7,049,038,206.24
  5. Step 5: Solve for x
    x = 7,049,038,206.24/92,811.15
  6. Step 6: Final answer
    x = 75,950.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.