Home / 81,765.12-122,545.08-34,962.96

Finding the Fourth Proportional to 81,765.12, 122,545.08 and 34,962.96

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Solution

The fourth proportional to 81,765.12, 122,545.08 and 34,962.96 is: 52,400.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,765.12 : 122,545.08 = 34,962.96 : x
  2. Step 2: Convert to fraction form
    81,765.12/122,545.08 = 34,962.96/x
  3. Step 3: Cross multiply
    81,765.12x = 122,545.08 × 34,962.96
  4. Step 4: Simplify right side
    81,765.12x = 4,284,538,730.24
  5. Step 5: Solve for x
    x = 4,284,538,730.24/81,765.12
  6. Step 6: Final answer
    x = 52,400.57

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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.