Home / 52,135.36-78,190.96-31,081.30

Finding the Fourth Proportional to 52,135.36, 78,190.96 and 31,081.30

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Solution

The fourth proportional to 52,135.36, 78,190.96 and 31,081.30 is: 46,614.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,135.36 : 78,190.96 = 31,081.30 : x
  2. Step 2: Convert to fraction form
    52,135.36/78,190.96 = 31,081.30/x
  3. Step 3: Cross multiply
    52,135.36x = 78,190.96 × 31,081.30
  4. Step 4: Simplify right side
    52,135.36x = 2,430,276,685.05
  5. Step 5: Solve for x
    x = 2,430,276,685.05/52,135.36
  6. Step 6: Final answer
    x = 46,614.75

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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.