Home / 56,868.20-78,477.36-31,375.64

Finding the Fourth Proportional to 56,868.20, 78,477.36 and 31,375.64

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Solution

The fourth proportional to 56,868.20, 78,477.36 and 31,375.64 is: 43,297.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,868.20 : 78,477.36 = 31,375.64 : x
  2. Step 2: Convert to fraction form
    56,868.20/78,477.36 = 31,375.64/x
  3. Step 3: Cross multiply
    56,868.20x = 78,477.36 × 31,375.64
  4. Step 4: Simplify right side
    56,868.20x = 2,462,277,003.12
  5. Step 5: Solve for x
    x = 2,462,277,003.12/56,868.20
  6. Step 6: Final answer
    x = 43,297.96

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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.