Home / 68,921.95-103,385.56-21,541.41

Finding the Fourth Proportional to 68,921.95, 103,385.56 and 21,541.41

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Solution

The fourth proportional to 68,921.95, 103,385.56 and 21,541.41 is: 32,312.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,921.95 : 103,385.56 = 21,541.41 : x
  2. Step 2: Convert to fraction form
    68,921.95/103,385.56 = 21,541.41/x
  3. Step 3: Cross multiply
    68,921.95x = 103,385.56 × 21,541.41
  4. Step 4: Simplify right side
    68,921.95x = 2,227,070,736.04
  5. Step 5: Solve for x
    x = 2,227,070,736.04/68,921.95
  6. Step 6: Final answer
    x = 32,312.94

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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.