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Finding the Fourth Proportional to 70,700.06, 106,126.94 and 28,609.12

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Solution

The fourth proportional to 70,700.06, 106,126.94 and 28,609.12 is: 42,944.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,700.06 : 106,126.94 = 28,609.12 : x
  2. Step 2: Convert to fraction form
    70,700.06/106,126.94 = 28,609.12/x
  3. Step 3: Cross multiply
    70,700.06x = 106,126.94 × 28,609.12
  4. Step 4: Simplify right side
    70,700.06x = 3,036,198,006.97
  5. Step 5: Solve for x
    x = 3,036,198,006.97/70,700.06
  6. Step 6: Final answer
    x = 42,944.77

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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.