Home / 45,687.12-68,513.40-17,970

Finding the Fourth Proportional to 45,687.12, 68,513.40 and 17,970

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Solution

The fourth proportional to 45,687.12, 68,513.40 and 17,970 is: 26,948.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,687.12 : 68,513.40 = 17,970 : x
  2. Step 2: Convert to fraction form
    45,687.12/68,513.40 = 17,970/x
  3. Step 3: Cross multiply
    45,687.12x = 68,513.40 × 17,970
  4. Step 4: Simplify right side
    45,687.12x = 1,231,185,798
  5. Step 5: Solve for x
    x = 1,231,185,798/45,687.12
  6. Step 6: Final answer
    x = 26,948.20

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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.