Home / 90,859.56-136,311.20-38,284.08

Finding the Fourth Proportional to 90,859.56, 136,311.20 and 38,284.08

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Solution

The fourth proportional to 90,859.56, 136,311.20 and 38,284.08 is: 57,435.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,859.56 : 136,311.20 = 38,284.08 : x
  2. Step 2: Convert to fraction form
    90,859.56/136,311.20 = 38,284.08/x
  3. Step 3: Cross multiply
    90,859.56x = 136,311.20 × 38,284.08
  4. Step 4: Simplify right side
    90,859.56x = 5,218,548,885.70
  5. Step 5: Solve for x
    x = 5,218,548,885.70/90,859.56
  6. Step 6: Final answer
    x = 57,435.33

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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.