Home / 52,131.36-78,115.04-40,314.08

Finding the Fourth Proportional to 52,131.36, 78,115.04 and 40,314.08

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Solution

The fourth proportional to 52,131.36, 78,115.04 and 40,314.08 is: 60,407.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,131.36 : 78,115.04 = 40,314.08 : x
  2. Step 2: Convert to fraction form
    52,131.36/78,115.04 = 40,314.08/x
  3. Step 3: Cross multiply
    52,131.36x = 78,115.04 × 40,314.08
  4. Step 4: Simplify right side
    52,131.36x = 3,149,135,971.76
  5. Step 5: Solve for x
    x = 3,149,135,971.76/52,131.36
  6. Step 6: Final answer
    x = 60,407.71

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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.