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Finding the Fourth Proportional to 66,930.50, 92,364.81 and 36,715.88

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Solution

The fourth proportional to 66,930.50, 92,364.81 and 36,715.88 is: 50,668.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,930.50 : 92,364.81 = 36,715.88 : x
  2. Step 2: Convert to fraction form
    66,930.50/92,364.81 = 36,715.88/x
  3. Step 3: Cross multiply
    66,930.50x = 92,364.81 × 36,715.88
  4. Step 4: Simplify right side
    66,930.50x = 3,391,255,373.41
  5. Step 5: Solve for x
    x = 3,391,255,373.41/66,930.50
  6. Step 6: Final answer
    x = 50,668.31

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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.