Home / 88,716.84-122,428.38-54,711.72

Finding the Fourth Proportional to 88,716.84, 122,428.38 and 54,711.72

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Solution

The fourth proportional to 88,716.84, 122,428.38 and 54,711.72 is: 75,501.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,716.84 : 122,428.38 = 54,711.72 : x
  2. Step 2: Convert to fraction form
    88,716.84/122,428.38 = 54,711.72/x
  3. Step 3: Cross multiply
    88,716.84x = 122,428.38 × 54,711.72
  4. Step 4: Simplify right side
    88,716.84x = 6,698,267,246.61
  5. Step 5: Solve for x
    x = 6,698,267,246.61/88,716.84
  6. Step 6: Final answer
    x = 75,501.64

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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.