Home / 45,432.78-68,160.10-19,145.04

Finding the Fourth Proportional to 45,432.78, 68,160.10 and 19,145.04

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Solution

The fourth proportional to 45,432.78, 68,160.10 and 19,145.04 is: 28,722.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,432.78 : 68,160.10 = 19,145.04 : x
  2. Step 2: Convert to fraction form
    45,432.78/68,160.10 = 19,145.04/x
  3. Step 3: Cross multiply
    45,432.78x = 68,160.10 × 19,145.04
  4. Step 4: Simplify right side
    45,432.78x = 1,304,927,840.90
  5. Step 5: Solve for x
    x = 1,304,927,840.90/45,432.78
  6. Step 6: Final answer
    x = 28,722.17

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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.