Home / 90,863.44-136,265.40-38,263.12

Finding the Fourth Proportional to 90,863.44, 136,265.40 and 38,263.12

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Solution

The fourth proportional to 90,863.44, 136,265.40 and 38,263.12 is: 57,382.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,863.44 : 136,265.40 = 38,263.12 : x
  2. Step 2: Convert to fraction form
    90,863.44/136,265.40 = 38,263.12/x
  3. Step 3: Cross multiply
    90,863.44x = 136,265.40 × 38,263.12
  4. Step 4: Simplify right side
    90,863.44x = 5,213,939,352.05
  5. Step 5: Solve for x
    x = 5,213,939,352.05/90,863.44
  6. Step 6: Final answer
    x = 57,382.15

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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.