Home / 56,388.28-77,812.46-31,235.96

Finding the Fourth Proportional to 56,388.28, 77,812.46 and 31,235.96

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Solution

The fourth proportional to 56,388.28, 77,812.46 and 31,235.96 is: 43,103.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,388.28 : 77,812.46 = 31,235.96 : x
  2. Step 2: Convert to fraction form
    56,388.28/77,812.46 = 31,235.96/x
  3. Step 3: Cross multiply
    56,388.28x = 77,812.46 × 31,235.96
  4. Step 4: Simplify right side
    56,388.28x = 2,430,546,888.06
  5. Step 5: Solve for x
    x = 2,430,546,888.06/56,388.28
  6. Step 6: Final answer
    x = 43,103.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.