Home / 73,011.06-109,517.46-28,658.70

Finding the Fourth Proportional to 73,011.06, 109,517.46 and 28,658.70

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Solution

The fourth proportional to 73,011.06, 109,517.46 and 28,658.70 is: 42,988.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,011.06 : 109,517.46 = 28,658.70 : x
  2. Step 2: Convert to fraction form
    73,011.06/109,517.46 = 28,658.70/x
  3. Step 3: Cross multiply
    73,011.06x = 109,517.46 × 28,658.70
  4. Step 4: Simplify right side
    73,011.06x = 3,138,628,030.90
  5. Step 5: Solve for x
    x = 3,138,628,030.90/73,011.06
  6. Step 6: Final answer
    x = 42,988.39

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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.