Home / 91,837.08-137,626.02-39,228.12

Finding the Fourth Proportional to 91,837.08, 137,626.02 and 39,228.12

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Solution

The fourth proportional to 91,837.08, 137,626.02 and 39,228.12 is: 58,786.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,837.08 : 137,626.02 = 39,228.12 : x
  2. Step 2: Convert to fraction form
    91,837.08/137,626.02 = 39,228.12/x
  3. Step 3: Cross multiply
    91,837.08x = 137,626.02 × 39,228.12
  4. Step 4: Simplify right side
    91,837.08x = 5,398,810,027.68
  5. Step 5: Solve for x
    x = 5,398,810,027.68/91,837.08
  6. Step 6: Final answer
    x = 58,786.82

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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.