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Finding the Fourth Proportional to 73,010.46, 109,515.69 and 28,658.10

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Solution

The fourth proportional to 73,010.46, 109,515.69 and 28,658.10 is: 42,987.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,010.46 : 109,515.69 = 28,658.10 : x
  2. Step 2: Convert to fraction form
    73,010.46/109,515.69 = 28,658.10/x
  3. Step 3: Cross multiply
    73,010.46x = 109,515.69 × 28,658.10
  4. Step 4: Simplify right side
    73,010.46x = 3,138,511,595.59
  5. Step 5: Solve for x
    x = 3,138,511,595.59/73,010.46
  6. Step 6: Final answer
    x = 42,987.15

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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.