Home / 78,512.07-117,750.41-22,350.93

Finding the Fourth Proportional to 78,512.07, 117,750.41 and 22,350.93

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Solution

The fourth proportional to 78,512.07, 117,750.41 and 22,350.93 is: 33,521.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,512.07 : 117,750.41 = 22,350.93 : x
  2. Step 2: Convert to fraction form
    78,512.07/117,750.41 = 22,350.93/x
  3. Step 3: Cross multiply
    78,512.07x = 117,750.41 × 22,350.93
  4. Step 4: Simplify right side
    78,512.07x = 2,631,831,171.38
  5. Step 5: Solve for x
    x = 2,631,831,171.38/78,512.07
  6. Step 6: Final answer
    x = 33,521.36

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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.