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Finding the Fourth Proportional to 52,247.88, 72,103.52 and 30,739.14

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Solution

The fourth proportional to 52,247.88, 72,103.52 and 30,739.14 is: 42,420.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,247.88 : 72,103.52 = 30,739.14 : x
  2. Step 2: Convert to fraction form
    52,247.88/72,103.52 = 30,739.14/x
  3. Step 3: Cross multiply
    52,247.88x = 72,103.52 × 30,739.14
  4. Step 4: Simplify right side
    52,247.88x = 2,216,400,195.77
  5. Step 5: Solve for x
    x = 2,216,400,195.77/52,247.88
  6. Step 6: Final answer
    x = 42,420.86

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1.5x scale

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.