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Finding the Fourth Proportional to 66,651.46, 91,979.19 and 36,437.13

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Solution

The fourth proportional to 66,651.46, 91,979.19 and 36,437.13 is: 50,283.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,651.46 : 91,979.19 = 36,437.13 : x
  2. Step 2: Convert to fraction form
    66,651.46/91,979.19 = 36,437.13/x
  3. Step 3: Cross multiply
    66,651.46x = 91,979.19 × 36,437.13
  4. Step 4: Simplify right side
    66,651.46x = 3,351,457,703.32
  5. Step 5: Solve for x
    x = 3,351,457,703.32/66,651.46
  6. Step 6: Final answer
    x = 50,283.34

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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.