Home / 90,861.44-136,262.40-38,261.12

Finding the Fourth Proportional to 90,861.44, 136,262.40 and 38,261.12

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Solution

The fourth proportional to 90,861.44, 136,262.40 and 38,261.12 is: 57,379.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,861.44 : 136,262.40 = 38,261.12 : x
  2. Step 2: Convert to fraction form
    90,861.44/136,262.40 = 38,261.12/x
  3. Step 3: Cross multiply
    90,861.44x = 136,262.40 × 38,261.12
  4. Step 4: Simplify right side
    90,861.44x = 5,213,552,037.89
  5. Step 5: Solve for x
    x = 5,213,552,037.89/90,861.44
  6. Step 6: Final answer
    x = 57,379.15

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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.