Home / 71,235.12-106,823.48-31,765.26

Finding the Fourth Proportional to 71,235.12, 106,823.48 and 31,765.26

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Solution

The fourth proportional to 71,235.12, 106,823.48 and 31,765.26 is: 47,634.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,235.12 : 106,823.48 = 31,765.26 : x
  2. Step 2: Convert to fraction form
    71,235.12/106,823.48 = 31,765.26/x
  3. Step 3: Cross multiply
    71,235.12x = 106,823.48 × 31,765.26
  4. Step 4: Simplify right side
    71,235.12x = 3,393,275,457.48
  5. Step 5: Solve for x
    x = 3,393,275,457.48/71,235.12
  6. Step 6: Final answer
    x = 47,634.87

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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.