Home / 88,815.71-122,565.71-47,979.84

Finding the Fourth Proportional to 88,815.71, 122,565.71 and 47,979.84

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Solution

The fourth proportional to 88,815.71, 122,565.71 and 47,979.84 is: 66,212.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,815.71 : 122,565.71 = 47,979.84 : x
  2. Step 2: Convert to fraction form
    88,815.71/122,565.71 = 47,979.84/x
  3. Step 3: Cross multiply
    88,815.71x = 122,565.71 × 47,979.84
  4. Step 4: Simplify right side
    88,815.71x = 5,880,682,915.39
  5. Step 5: Solve for x
    x = 5,880,682,915.39/88,815.71
  6. Step 6: Final answer
    x = 66,212.20

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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.