Home / 52,176.40-78,257.28-17,111.50

Finding the Fourth Proportional to 52,176.40, 78,257.28 and 17,111.50

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Solution

The fourth proportional to 52,176.40, 78,257.28 and 17,111.50 is: 25,664.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,176.40 : 78,257.28 = 17,111.50 : x
  2. Step 2: Convert to fraction form
    52,176.40/78,257.28 = 17,111.50/x
  3. Step 3: Cross multiply
    52,176.40x = 78,257.28 × 17,111.50
  4. Step 4: Simplify right side
    52,176.40x = 1,339,099,446.72
  5. Step 5: Solve for x
    x = 1,339,099,446.72/52,176.40
  6. Step 6: Final answer
    x = 25,664.85

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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.