Home / 40,216.40-60,382.20-31,461.20

Finding the Fourth Proportional to 40,216.40, 60,382.20 and 31,461.20

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Solution

The fourth proportional to 40,216.40, 60,382.20 and 31,461.20 is: 47,236.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,216.40 : 60,382.20 = 31,461.20 : x
  2. Step 2: Convert to fraction form
    40,216.40/60,382.20 = 31,461.20/x
  3. Step 3: Cross multiply
    40,216.40x = 60,382.20 × 31,461.20
  4. Step 4: Simplify right side
    40,216.40x = 1,899,696,470.64
  5. Step 5: Solve for x
    x = 1,899,696,470.64/40,216.40
  6. Step 6: Final answer
    x = 47,236.86

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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.