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Finding the Fourth Proportional to 64,969.30, 89,656.77 and 36,675.55

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Solution

The fourth proportional to 64,969.30, 89,656.77 and 36,675.55 is: 50,611.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,969.30 : 89,656.77 = 36,675.55 : x
  2. Step 2: Convert to fraction form
    64,969.30/89,656.77 = 36,675.55/x
  3. Step 3: Cross multiply
    64,969.30x = 89,656.77 × 36,675.55
  4. Step 4: Simplify right side
    64,969.30x = 3,288,211,350.97
  5. Step 5: Solve for x
    x = 3,288,211,350.97/64,969.30
  6. Step 6: Final answer
    x = 50,611.77

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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.