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Finding the Fourth Proportional to 66,815.90, 92,205.90 and 36,600.96

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Solution

The fourth proportional to 66,815.90, 92,205.90 and 36,600.96 is: 50,509.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,815.90 : 92,205.90 = 36,600.96 : x
  2. Step 2: Convert to fraction form
    66,815.90/92,205.90 = 36,600.96/x
  3. Step 3: Cross multiply
    66,815.90x = 92,205.90 × 36,600.96
  4. Step 4: Simplify right side
    66,815.90x = 3,374,824,457.66
  5. Step 5: Solve for x
    x = 3,374,824,457.66/66,815.90
  6. Step 6: Final answer
    x = 50,509.30

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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.