Home / 81,664.02-122,530.69-39,575.43

Finding the Fourth Proportional to 81,664.02, 122,530.69 and 39,575.43

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Solution

The fourth proportional to 81,664.02, 122,530.69 and 39,575.43 is: 59,379.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,664.02 : 122,530.69 = 39,575.43 : x
  2. Step 2: Convert to fraction form
    81,664.02/122,530.69 = 39,575.43/x
  3. Step 3: Cross multiply
    81,664.02x = 122,530.69 × 39,575.43
  4. Step 4: Simplify right side
    81,664.02x = 4,849,204,744.95
  5. Step 5: Solve for x
    x = 4,849,204,744.95/81,664.02
  6. Step 6: Final answer
    x = 59,379.94

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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.