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Finding the Fourth Proportional to 92,765.92, 139,169.04 and 30,434.08

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Solution

The fourth proportional to 92,765.92, 139,169.04 and 30,434.08 is: 45,657.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,765.92 : 139,169.04 = 30,434.08 : x
  2. Step 2: Convert to fraction form
    92,765.92/139,169.04 = 30,434.08/x
  3. Step 3: Cross multiply
    92,765.92x = 139,169.04 × 30,434.08
  4. Step 4: Simplify right side
    92,765.92x = 4,235,481,696.88
  5. Step 5: Solve for x
    x = 4,235,481,696.88/92,765.92
  6. Step 6: Final answer
    x = 45,657.73

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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.