Home / 72,027.50-108,040.37-18,714.76

Finding the Fourth Proportional to 72,027.50, 108,040.37 and 18,714.76

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Solution

The fourth proportional to 72,027.50, 108,040.37 and 18,714.76 is: 28,071.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,027.50 : 108,040.37 = 18,714.76 : x
  2. Step 2: Convert to fraction form
    72,027.50/108,040.37 = 18,714.76/x
  3. Step 3: Cross multiply
    72,027.50x = 108,040.37 × 18,714.76
  4. Step 4: Simplify right side
    72,027.50x = 2,021,949,371.55
  5. Step 5: Solve for x
    x = 2,021,949,371.55/72,027.50
  6. Step 6: Final answer
    x = 28,071.91

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1.5x scale

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.