Home / 82,663.08-124,029.72-45,179.35

Finding the Fourth Proportional to 82,663.08, 124,029.72 and 45,179.35

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Solution

The fourth proportional to 82,663.08, 124,029.72 and 45,179.35 is: 67,788.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,663.08 : 124,029.72 = 45,179.35 : x
  2. Step 2: Convert to fraction form
    82,663.08/124,029.72 = 45,179.35/x
  3. Step 3: Cross multiply
    82,663.08x = 124,029.72 × 45,179.35
  4. Step 4: Simplify right side
    82,663.08x = 5,603,581,820.21
  5. Step 5: Solve for x
    x = 5,603,581,820.21/82,663.08
  6. Step 6: Final answer
    x = 67,788.21

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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.