Home / 51,930.12-77,863.98-20,302.50

Finding the Fourth Proportional to 51,930.12, 77,863.98 and 20,302.50

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Solution

The fourth proportional to 51,930.12, 77,863.98 and 20,302.50 is: 30,441.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,930.12 : 77,863.98 = 20,302.50 : x
  2. Step 2: Convert to fraction form
    51,930.12/77,863.98 = 20,302.50/x
  3. Step 3: Cross multiply
    51,930.12x = 77,863.98 × 20,302.50
  4. Step 4: Simplify right side
    51,930.12x = 1,580,833,453.95
  5. Step 5: Solve for x
    x = 1,580,833,453.95/51,930.12
  6. Step 6: Final answer
    x = 30,441.55

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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.