Home / 88,105.12-121,529.75-52,269.75

Finding the Fourth Proportional to 88,105.12, 121,529.75 and 52,269.75

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Solution

The fourth proportional to 88,105.12, 121,529.75 and 52,269.75 is: 72,099.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,105.12 : 121,529.75 = 52,269.75 : x
  2. Step 2: Convert to fraction form
    88,105.12/121,529.75 = 52,269.75/x
  3. Step 3: Cross multiply
    88,105.12x = 121,529.75 × 52,269.75
  4. Step 4: Simplify right side
    88,105.12x = 6,352,329,388.71
  5. Step 5: Solve for x
    x = 6,352,329,388.71/88,105.12
  6. Step 6: Final answer
    x = 72,099.44

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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.