Home / 56,735.28-78,291.62-31,236.68

Finding the Fourth Proportional to 56,735.28, 78,291.62 and 31,236.68

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Solution

The fourth proportional to 56,735.28, 78,291.62 and 31,236.68 is: 43,104.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,735.28 : 78,291.62 = 31,236.68 : x
  2. Step 2: Convert to fraction form
    56,735.28/78,291.62 = 31,236.68/x
  3. Step 3: Cross multiply
    56,735.28x = 78,291.62 × 31,236.68
  4. Step 4: Simplify right side
    56,735.28x = 2,445,570,280.62
  5. Step 5: Solve for x
    x = 2,445,570,280.62/56,735.28
  6. Step 6: Final answer
    x = 43,104.93

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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.