Home / 73,009.06-109,514.46-28,656.70

Finding the Fourth Proportional to 73,009.06, 109,514.46 and 28,656.70

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Solution

The fourth proportional to 73,009.06, 109,514.46 and 28,656.70 is: 42,985.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,009.06 : 109,514.46 = 28,656.70 : x
  2. Step 2: Convert to fraction form
    73,009.06/109,514.46 = 28,656.70/x
  3. Step 3: Cross multiply
    73,009.06x = 109,514.46 × 28,656.70
  4. Step 4: Simplify right side
    73,009.06x = 3,138,323,025.88
  5. Step 5: Solve for x
    x = 3,138,323,025.88/73,009.06
  6. Step 6: Final answer
    x = 42,985.39

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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.