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Finding the Fourth Proportional to 82,994.60, 124,491.90 and 30,382.68

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Solution

The fourth proportional to 82,994.60, 124,491.90 and 30,382.68 is: 45,574.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,994.60 : 124,491.90 = 30,382.68 : x
  2. Step 2: Convert to fraction form
    82,994.60/124,491.90 = 30,382.68/x
  3. Step 3: Cross multiply
    82,994.60x = 124,491.90 × 30,382.68
  4. Step 4: Simplify right side
    82,994.60x = 3,782,397,560.29
  5. Step 5: Solve for x
    x = 3,782,397,560.29/82,994.60
  6. Step 6: Final answer
    x = 45,574.02

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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.