Home / 78,663.44-117,967.08-25,344.56

Finding the Fourth Proportional to 78,663.44, 117,967.08 and 25,344.56

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Solution

The fourth proportional to 78,663.44, 117,967.08 and 25,344.56 is: 38,007.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,663.44 : 117,967.08 = 25,344.56 : x
  2. Step 2: Convert to fraction form
    78,663.44/117,967.08 = 25,344.56/x
  3. Step 3: Cross multiply
    78,663.44x = 117,967.08 × 25,344.56
  4. Step 4: Simplify right side
    78,663.44x = 2,989,823,737.08
  5. Step 5: Solve for x
    x = 2,989,823,737.08/78,663.44
  6. Step 6: Final answer
    x = 38,007.79

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1.5x scale

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.