Home / 78,539.87-117,820.75-25,233.46

Finding the Fourth Proportional to 78,539.87, 117,820.75 and 25,233.46

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Solution

The fourth proportional to 78,539.87, 117,820.75 and 25,233.46 is: 37,853.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,539.87 : 117,820.75 = 25,233.46 : x
  2. Step 2: Convert to fraction form
    78,539.87/117,820.75 = 25,233.46/x
  3. Step 3: Cross multiply
    78,539.87x = 117,820.75 × 25,233.46
  4. Step 4: Simplify right side
    78,539.87x = 2,973,024,824.66
  5. Step 5: Solve for x
    x = 2,973,024,824.66/78,539.87
  6. Step 6: Final answer
    x = 37,853.70

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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.