Home / 73,011.21-109,516.82-28,658.85

Finding the Fourth Proportional to 73,011.21, 109,516.82 and 28,658.85

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Solution

The fourth proportional to 73,011.21, 109,516.82 and 28,658.85 is: 42,988.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,011.21 : 109,516.82 = 28,658.85 : x
  2. Step 2: Convert to fraction form
    73,011.21/109,516.82 = 28,658.85/x
  3. Step 3: Cross multiply
    73,011.21x = 109,516.82 × 28,658.85
  4. Step 4: Simplify right side
    73,011.21x = 3,138,625,973.56
  5. Step 5: Solve for x
    x = 3,138,625,973.56/73,011.21
  6. Step 6: Final answer
    x = 42,988.28

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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.