Home / 91,811.40-137,736.30-29,488.20

Finding the Fourth Proportional to 91,811.40, 137,736.30 and 29,488.20

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Solution

The fourth proportional to 91,811.40, 137,736.30 and 29,488.20 is: 44,238.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,811.40 : 137,736.30 = 29,488.20 : x
  2. Step 2: Convert to fraction form
    91,811.40/137,736.30 = 29,488.20/x
  3. Step 3: Cross multiply
    91,811.40x = 137,736.30 × 29,488.20
  4. Step 4: Simplify right side
    91,811.40x = 4,061,595,561.66
  5. Step 5: Solve for x
    x = 4,061,595,561.66/91,811.40
  6. Step 6: Final answer
    x = 44,238.47

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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.