Home / 78,605.02-117,888.09-49,007.62

Finding the Fourth Proportional to 78,605.02, 117,888.09 and 49,007.62

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Solution

The fourth proportional to 78,605.02, 117,888.09 and 49,007.62 is: 73,499.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,605.02 : 117,888.09 = 49,007.62 : x
  2. Step 2: Convert to fraction form
    78,605.02/117,888.09 = 49,007.62/x
  3. Step 3: Cross multiply
    78,605.02x = 117,888.09 × 49,007.62
  4. Step 4: Simplify right side
    78,605.02x = 5,777,414,717.25
  5. Step 5: Solve for x
    x = 5,777,414,717.25/78,605.02
  6. Step 6: Final answer
    x = 73,499.31

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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.