Home / 91,855.21-137,720.17-46,765.75

Finding the Fourth Proportional to 91,855.21, 137,720.17 and 46,765.75

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Solution

The fourth proportional to 91,855.21, 137,720.17 and 46,765.75 is: 70,116.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,855.21 : 137,720.17 = 46,765.75 : x
  2. Step 2: Convert to fraction form
    91,855.21/137,720.17 = 46,765.75/x
  3. Step 3: Cross multiply
    91,855.21x = 137,720.17 × 46,765.75
  4. Step 4: Simplify right side
    91,855.21x = 6,440,587,040.18
  5. Step 5: Solve for x
    x = 6,440,587,040.18/91,855.21
  6. Step 6: Final answer
    x = 70,116.73

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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.