Home / 78,297.86-117,432.02-22,137.52

Finding the Fourth Proportional to 78,297.86, 117,432.02 and 22,137.52

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Solution

The fourth proportional to 78,297.86, 117,432.02 and 22,137.52 is: 33,202.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,297.86 : 117,432.02 = 22,137.52 : x
  2. Step 2: Convert to fraction form
    78,297.86/117,432.02 = 22,137.52/x
  3. Step 3: Cross multiply
    78,297.86x = 117,432.02 × 22,137.52
  4. Step 4: Simplify right side
    78,297.86x = 2,599,653,691.39
  5. Step 5: Solve for x
    x = 2,599,653,691.39/78,297.86
  6. Step 6: Final answer
    x = 33,202.10

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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.