Home / 77,982.07-117,025.01-42,452.36

Finding the Fourth Proportional to 77,982.07, 117,025.01 and 42,452.36

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Solution

The fourth proportional to 77,982.07, 117,025.01 and 42,452.36 is: 63,706.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,982.07 : 117,025.01 = 42,452.36 : x
  2. Step 2: Convert to fraction form
    77,982.07/117,025.01 = 42,452.36/x
  3. Step 3: Cross multiply
    77,982.07x = 117,025.01 × 42,452.36
  4. Step 4: Simplify right side
    77,982.07x = 4,967,987,374.53
  5. Step 5: Solve for x
    x = 4,967,987,374.53/77,982.07
  6. Step 6: Final answer
    x = 63,706.79

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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.