Home / 90,965.30-136,462.53-38,382.53

Finding the Fourth Proportional to 90,965.30, 136,462.53 and 38,382.53

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Solution

The fourth proportional to 90,965.30, 136,462.53 and 38,382.53 is: 57,579.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,965.30 : 136,462.53 = 38,382.53 : x
  2. Step 2: Convert to fraction form
    90,965.30/136,462.53 = 38,382.53/x
  3. Step 3: Cross multiply
    90,965.30x = 136,462.53 × 38,382.53
  4. Step 4: Simplify right side
    90,965.30x = 5,237,776,469.29
  5. Step 5: Solve for x
    x = 5,237,776,469.29/90,965.30
  6. Step 6: Final answer
    x = 57,579.94

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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.