Home / 90,806.32-136,311.54-38,260

Finding the Fourth Proportional to 90,806.32, 136,311.54 and 38,260

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Solution

The fourth proportional to 90,806.32, 136,311.54 and 38,260 is: 57,433.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,806.32 : 136,311.54 = 38,260 : x
  2. Step 2: Convert to fraction form
    90,806.32/136,311.54 = 38,260/x
  3. Step 3: Cross multiply
    90,806.32x = 136,311.54 × 38,260
  4. Step 4: Simplify right side
    90,806.32x = 5,215,279,520.40
  5. Step 5: Solve for x
    x = 5,215,279,520.40/90,806.32
  6. Step 6: Final answer
    x = 57,433.00

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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.