Home / 82,379.04-123,495.48-40,236

Finding the Fourth Proportional to 82,379.04, 123,495.48 and 40,236

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Solution

The fourth proportional to 82,379.04, 123,495.48 and 40,236 is: 60,318.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,379.04 : 123,495.48 = 40,236 : x
  2. Step 2: Convert to fraction form
    82,379.04/123,495.48 = 40,236/x
  3. Step 3: Cross multiply
    82,379.04x = 123,495.48 × 40,236
  4. Step 4: Simplify right side
    82,379.04x = 4,968,964,133.28
  5. Step 5: Solve for x
    x = 4,968,964,133.28/82,379.04
  6. Step 6: Final answer
    x = 60,318.31

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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.