Home / 81,537.42-122,347.88-37,158.47

Finding the Fourth Proportional to 81,537.42, 122,347.88 and 37,158.47

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Solution

The fourth proportional to 81,537.42, 122,347.88 and 37,158.47 is: 55,756.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,537.42 : 122,347.88 = 37,158.47 : x
  2. Step 2: Convert to fraction form
    81,537.42/122,347.88 = 37,158.47/x
  3. Step 3: Cross multiply
    81,537.42x = 122,347.88 × 37,158.47
  4. Step 4: Simplify right side
    81,537.42x = 4,546,259,231.01
  5. Step 5: Solve for x
    x = 4,546,259,231.01/81,537.42
  6. Step 6: Final answer
    x = 55,756.72

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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.