Home / 73,687.86-110,439.30-31,518.36

Finding the Fourth Proportional to 73,687.86, 110,439.30 and 31,518.36

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Solution

The fourth proportional to 73,687.86, 110,439.30 and 31,518.36 is: 47,237.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,687.86 : 110,439.30 = 31,518.36 : x
  2. Step 2: Convert to fraction form
    73,687.86/110,439.30 = 31,518.36/x
  3. Step 3: Cross multiply
    73,687.86x = 110,439.30 × 31,518.36
  4. Step 4: Simplify right side
    73,687.86x = 3,480,865,615.55
  5. Step 5: Solve for x
    x = 3,480,865,615.55/73,687.86
  6. Step 6: Final answer
    x = 47,237.98

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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.