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Finding the Fourth Proportional to 66,903.90, 92,327.32 and 36,689.70

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Solution

The fourth proportional to 66,903.90, 92,327.32 and 36,689.70 is: 50,631.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,903.90 : 92,327.32 = 36,689.70 : x
  2. Step 2: Convert to fraction form
    66,903.90/92,327.32 = 36,689.70/x
  3. Step 3: Cross multiply
    66,903.90x = 92,327.32 × 36,689.70
  4. Step 4: Simplify right side
    66,903.90x = 3,387,461,672.60
  5. Step 5: Solve for x
    x = 3,387,461,672.60/66,903.90
  6. Step 6: Final answer
    x = 50,631.75

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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.