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Finding the Fourth Proportional to 91,662.06, 126,397.71 and 67,838.70

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Solution

The fourth proportional to 91,662.06, 126,397.71 and 67,838.70 is: 93,546.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,662.06 : 126,397.71 = 67,838.70 : x
  2. Step 2: Convert to fraction form
    91,662.06/126,397.71 = 67,838.70/x
  3. Step 3: Cross multiply
    91,662.06x = 126,397.71 × 67,838.70
  4. Step 4: Simplify right side
    91,662.06x = 8,574,656,329.38
  5. Step 5: Solve for x
    x = 8,574,656,329.38/91,662.06
  6. Step 6: Final answer
    x = 93,546.41

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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.