Home / 80,262.63-120,395.13-38,147.01

Finding the Fourth Proportional to 80,262.63, 120,395.13 and 38,147.01

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Solution

The fourth proportional to 80,262.63, 120,395.13 and 38,147.01 is: 57,221.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,262.63 : 120,395.13 = 38,147.01 : x
  2. Step 2: Convert to fraction form
    80,262.63/120,395.13 = 38,147.01/x
  3. Step 3: Cross multiply
    80,262.63x = 120,395.13 × 38,147.01
  4. Step 4: Simplify right side
    80,262.63x = 4,592,714,228.06
  5. Step 5: Solve for x
    x = 4,592,714,228.06/80,262.63
  6. Step 6: Final answer
    x = 57,221.08

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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.