Home / 91,720.06-137,557-35,540.89

Finding the Fourth Proportional to 91,720.06, 137,557 and 35,540.89

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Solution

The fourth proportional to 91,720.06, 137,557 and 35,540.89 is: 53,302.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,720.06 : 137,557 = 35,540.89 : x
  2. Step 2: Convert to fraction form
    91,720.06/137,557 = 35,540.89/x
  3. Step 3: Cross multiply
    91,720.06x = 137,557 × 35,540.89
  4. Step 4: Simplify right side
    91,720.06x = 4,888,898,205.73
  5. Step 5: Solve for x
    x = 4,888,898,205.73/91,720.06
  6. Step 6: Final answer
    x = 53,302.39

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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.