Home / 56,758.62-78,323.85-31,606.50

Finding the Fourth Proportional to 56,758.62, 78,323.85 and 31,606.50

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Solution

The fourth proportional to 56,758.62, 78,323.85 and 31,606.50 is: 43,615.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,758.62 : 78,323.85 = 31,606.50 : x
  2. Step 2: Convert to fraction form
    56,758.62/78,323.85 = 31,606.50/x
  3. Step 3: Cross multiply
    56,758.62x = 78,323.85 × 31,606.50
  4. Step 4: Simplify right side
    56,758.62x = 2,475,542,765.03
  5. Step 5: Solve for x
    x = 2,475,542,765.03/56,758.62
  6. Step 6: Final answer
    x = 43,615.27

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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.