Home / 81,962.79-122,871.24-32,031.53

Finding the Fourth Proportional to 81,962.79, 122,871.24 and 32,031.53

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Solution

The fourth proportional to 81,962.79, 122,871.24 and 32,031.53 is: 48,018.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,962.79 : 122,871.24 = 32,031.53 : x
  2. Step 2: Convert to fraction form
    81,962.79/122,871.24 = 32,031.53/x
  3. Step 3: Cross multiply
    81,962.79x = 122,871.24 × 32,031.53
  4. Step 4: Simplify right side
    81,962.79x = 3,935,753,810.20
  5. Step 5: Solve for x
    x = 3,935,753,810.20/81,962.79
  6. Step 6: Final answer
    x = 48,018.79

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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.