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Finding the Fourth Proportional to 66,899.31, 92,321.01 and 36,685.16

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Solution

The fourth proportional to 66,899.31, 92,321.01 and 36,685.16 is: 50,625.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,899.31 : 92,321.01 = 36,685.16 : x
  2. Step 2: Convert to fraction form
    66,899.31/92,321.01 = 36,685.16/x
  3. Step 3: Cross multiply
    66,899.31x = 92,321.01 × 36,685.16
  4. Step 4: Simplify right side
    66,899.31x = 3,386,810,561.61
  5. Step 5: Solve for x
    x = 3,386,810,561.61/66,899.31
  6. Step 6: Final answer
    x = 50,625.49

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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.