Home / 52,592.58-78,920.10-21,017.57

Finding the Fourth Proportional to 52,592.58, 78,920.10 and 21,017.57

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Solution

The fourth proportional to 52,592.58, 78,920.10 and 21,017.57 is: 31,538.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,592.58 : 78,920.10 = 21,017.57 : x
  2. Step 2: Convert to fraction form
    52,592.58/78,920.10 = 21,017.57/x
  3. Step 3: Cross multiply
    52,592.58x = 78,920.10 × 21,017.57
  4. Step 4: Simplify right side
    52,592.58x = 1,658,708,331.56
  5. Step 5: Solve for x
    x = 1,658,708,331.56/52,592.58
  6. Step 6: Final answer
    x = 31,538.83

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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.