Home / 78,432.02-117,662.61-25,843.58

Finding the Fourth Proportional to 78,432.02, 117,662.61 and 25,843.58

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Solution

The fourth proportional to 78,432.02, 117,662.61 and 25,843.58 is: 38,770.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,432.02 : 117,662.61 = 25,843.58 : x
  2. Step 2: Convert to fraction form
    78,432.02/117,662.61 = 25,843.58/x
  3. Step 3: Cross multiply
    78,432.02x = 117,662.61 × 25,843.58
  4. Step 4: Simplify right side
    78,432.02x = 3,040,823,074.54
  5. Step 5: Solve for x
    x = 3,040,823,074.54/78,432.02
  6. Step 6: Final answer
    x = 38,770.17

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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.