Home / 91,079.31-136,619.30-27,899.18

Finding the Fourth Proportional to 91,079.31, 136,619.30 and 27,899.18

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Solution

The fourth proportional to 91,079.31, 136,619.30 and 27,899.18 is: 41,848.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,079.31 : 136,619.30 = 27,899.18 : x
  2. Step 2: Convert to fraction form
    91,079.31/136,619.30 = 27,899.18/x
  3. Step 3: Cross multiply
    91,079.31x = 136,619.30 × 27,899.18
  4. Step 4: Simplify right side
    91,079.31x = 3,811,565,828.83
  5. Step 5: Solve for x
    x = 3,811,565,828.83/91,079.31
  6. Step 6: Final answer
    x = 41,848.87

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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.