Home / 78,243.87-117,372.37-24,943.43

Finding the Fourth Proportional to 78,243.87, 117,372.37 and 24,943.43

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Solution

The fourth proportional to 78,243.87, 117,372.37 and 24,943.43 is: 37,417.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,243.87 : 117,372.37 = 24,943.43 : x
  2. Step 2: Convert to fraction form
    78,243.87/117,372.37 = 24,943.43/x
  3. Step 3: Cross multiply
    78,243.87x = 117,372.37 × 24,943.43
  4. Step 4: Simplify right side
    78,243.87x = 2,927,668,908.17
  5. Step 5: Solve for x
    x = 2,927,668,908.17/78,243.87
  6. Step 6: Final answer
    x = 37,417.23

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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.