Home / 88,910.42-122,740.99-68,721.71

Finding the Fourth Proportional to 88,910.42, 122,740.99 and 68,721.71

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Solution

The fourth proportional to 88,910.42, 122,740.99 and 68,721.71 is: 94,870.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,910.42 : 122,740.99 = 68,721.71 : x
  2. Step 2: Convert to fraction form
    88,910.42/122,740.99 = 68,721.71/x
  3. Step 3: Cross multiply
    88,910.42x = 122,740.99 × 68,721.71
  4. Step 4: Simplify right side
    88,910.42x = 8,434,969,934.38
  5. Step 5: Solve for x
    x = 8,434,969,934.38/88,910.42
  6. Step 6: Final answer
    x = 94,870.44

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1.5x scale

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.