Home / 73,012.06-109,518.96-28,659.70

Finding the Fourth Proportional to 73,012.06, 109,518.96 and 28,659.70

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Solution

The fourth proportional to 73,012.06, 109,518.96 and 28,659.70 is: 42,989.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,012.06 : 109,518.96 = 28,659.70 : x
  2. Step 2: Convert to fraction form
    73,012.06/109,518.96 = 28,659.70/x
  3. Step 3: Cross multiply
    73,012.06x = 109,518.96 × 28,659.70
  4. Step 4: Simplify right side
    73,012.06x = 3,138,780,537.91
  5. Step 5: Solve for x
    x = 3,138,780,537.91/73,012.06
  6. Step 6: Final answer
    x = 42,989.89

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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.