Home / 88,436.34-121,809.68-67,979.27

Finding the Fourth Proportional to 88,436.34, 121,809.68 and 67,979.27

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Solution

The fourth proportional to 88,436.34, 121,809.68 and 67,979.27 is: 93,632.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,436.34 : 121,809.68 = 67,979.27 : x
  2. Step 2: Convert to fraction form
    88,436.34/121,809.68 = 67,979.27/x
  3. Step 3: Cross multiply
    88,436.34x = 121,809.68 × 67,979.27
  4. Step 4: Simplify right side
    88,436.34x = 8,280,533,125.33
  5. Step 5: Solve for x
    x = 8,280,533,125.33/88,436.34
  6. Step 6: Final answer
    x = 93,632.70

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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.