Home / 67,287.10-92,835.18-40,435.60

Finding the Fourth Proportional to 67,287.10, 92,835.18 and 40,435.60

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Solution

The fourth proportional to 67,287.10, 92,835.18 and 40,435.60 is: 55,788.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,287.10 : 92,835.18 = 40,435.60 : x
  2. Step 2: Convert to fraction form
    67,287.10/92,835.18 = 40,435.60/x
  3. Step 3: Cross multiply
    67,287.10x = 92,835.18 × 40,435.60
  4. Step 4: Simplify right side
    67,287.10x = 3,753,846,204.41
  5. Step 5: Solve for x
    x = 3,753,846,204.41/67,287.10
  6. Step 6: Final answer
    x = 55,788.50

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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.