Home / 52,135.56-78,191.36-31,081.56

Finding the Fourth Proportional to 52,135.56, 78,191.36 and 31,081.56

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Solution

The fourth proportional to 52,135.56, 78,191.36 and 31,081.56 is: 46,615.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,135.56 : 78,191.36 = 31,081.56 : x
  2. Step 2: Convert to fraction form
    52,135.56/78,191.36 = 31,081.56/x
  3. Step 3: Cross multiply
    52,135.56x = 78,191.36 × 31,081.56
  4. Step 4: Simplify right side
    52,135.56x = 2,430,309,447.32
  5. Step 5: Solve for x
    x = 2,430,309,447.32/52,135.56
  6. Step 6: Final answer
    x = 46,615.20

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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.