Home / 52,104.15-78,140.26-18,820.11

Finding the Fourth Proportional to 52,104.15, 78,140.26 and 18,820.11

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Solution

The fourth proportional to 52,104.15, 78,140.26 and 18,820.11 is: 28,224.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,104.15 : 78,140.26 = 18,820.11 : x
  2. Step 2: Convert to fraction form
    52,104.15/78,140.26 = 18,820.11/x
  3. Step 3: Cross multiply
    52,104.15x = 78,140.26 × 18,820.11
  4. Step 4: Simplify right side
    52,104.15x = 1,470,607,850.88
  5. Step 5: Solve for x
    x = 1,470,607,850.88/52,104.15
  6. Step 6: Final answer
    x = 28,224.39

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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.