Home / 78,342.03-117,498.02-22,168.58

Finding the Fourth Proportional to 78,342.03, 117,498.02 and 22,168.58

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Solution

The fourth proportional to 78,342.03, 117,498.02 and 22,168.58 is: 33,248.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,342.03 : 117,498.02 = 22,168.58 : x
  2. Step 2: Convert to fraction form
    78,342.03/117,498.02 = 22,168.58/x
  3. Step 3: Cross multiply
    78,342.03x = 117,498.02 × 22,168.58
  4. Step 4: Simplify right side
    78,342.03x = 2,604,763,557.88
  5. Step 5: Solve for x
    x = 2,604,763,557.88/78,342.03
  6. Step 6: Final answer
    x = 33,248.61

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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.