Home / 61,321.78-91,966.19-16,938.10

Finding the Fourth Proportional to 61,321.78, 91,966.19 and 16,938.10

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Solution

The fourth proportional to 61,321.78, 91,966.19 and 16,938.10 is: 25,402.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,321.78 : 91,966.19 = 16,938.10 : x
  2. Step 2: Convert to fraction form
    61,321.78/91,966.19 = 16,938.10/x
  3. Step 3: Cross multiply
    61,321.78x = 91,966.19 × 16,938.10
  4. Step 4: Simplify right side
    61,321.78x = 1,557,732,522.84
  5. Step 5: Solve for x
    x = 1,557,732,522.84/61,321.78
  6. Step 6: Final answer
    x = 25,402.60

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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.