Home / 47,677.20-71,515.80-36,639.60

Finding the Fourth Proportional to 47,677.20, 71,515.80 and 36,639.60

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Solution

The fourth proportional to 47,677.20, 71,515.80 and 36,639.60 is: 54,959.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,677.20 : 71,515.80 = 36,639.60 : x
  2. Step 2: Convert to fraction form
    47,677.20/71,515.80 = 36,639.60/x
  3. Step 3: Cross multiply
    47,677.20x = 71,515.80 × 36,639.60
  4. Step 4: Simplify right side
    47,677.20x = 2,620,310,305.68
  5. Step 5: Solve for x
    x = 2,620,310,305.68/47,677.20
  6. Step 6: Final answer
    x = 54,959.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.