Home / 78,209.40-117,321.02-22,050.01

Finding the Fourth Proportional to 78,209.40, 117,321.02 and 22,050.01

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Solution

The fourth proportional to 78,209.40, 117,321.02 and 22,050.01 is: 33,076.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,209.40 : 117,321.02 = 22,050.01 : x
  2. Step 2: Convert to fraction form
    78,209.40/117,321.02 = 22,050.01/x
  3. Step 3: Cross multiply
    78,209.40x = 117,321.02 × 22,050.01
  4. Step 4: Simplify right side
    78,209.40x = 2,586,929,664.21
  5. Step 5: Solve for x
    x = 2,586,929,664.21/78,209.40
  6. Step 6: Final answer
    x = 33,076.97

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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.