Home / 90,842.10-136,263.20-40,863.81

Finding the Fourth Proportional to 90,842.10, 136,263.20 and 40,863.81

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Solution

The fourth proportional to 90,842.10, 136,263.20 and 40,863.81 is: 61,295.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,842.10 : 136,263.20 = 40,863.81 : x
  2. Step 2: Convert to fraction form
    90,842.10/136,263.20 = 40,863.81/x
  3. Step 3: Cross multiply
    90,842.10x = 136,263.20 × 40,863.81
  4. Step 4: Simplify right side
    90,842.10x = 5,568,233,310.47
  5. Step 5: Solve for x
    x = 5,568,233,310.47/90,842.10
  6. Step 6: Final answer
    x = 61,295.74

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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.