Home / 92,956.20-139,434.30-30,618.60

Finding the Fourth Proportional to 92,956.20, 139,434.30 and 30,618.60

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Solution

The fourth proportional to 92,956.20, 139,434.30 and 30,618.60 is: 45,927.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,956.20 : 139,434.30 = 30,618.60 : x
  2. Step 2: Convert to fraction form
    92,956.20/139,434.30 = 30,618.60/x
  3. Step 3: Cross multiply
    92,956.20x = 139,434.30 × 30,618.60
  4. Step 4: Simplify right side
    92,956.20x = 4,269,283,057.98
  5. Step 5: Solve for x
    x = 4,269,283,057.98/92,956.20
  6. Step 6: Final answer
    x = 45,927.90

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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.