Home / 82,720.83-124,103.12-43,267.35

Finding the Fourth Proportional to 82,720.83, 124,103.12 and 43,267.35

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Solution

The fourth proportional to 82,720.83, 124,103.12 and 43,267.35 is: 64,912.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,720.83 : 124,103.12 = 43,267.35 : x
  2. Step 2: Convert to fraction form
    82,720.83/124,103.12 = 43,267.35/x
  3. Step 3: Cross multiply
    82,720.83x = 124,103.12 × 43,267.35
  4. Step 4: Simplify right side
    82,720.83x = 5,369,613,129.13
  5. Step 5: Solve for x
    x = 5,369,613,129.13/82,720.83
  6. Step 6: Final answer
    x = 64,912.47

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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.