Home / 66,638.35-99,856.68-29,177.47

Finding the Fourth Proportional to 66,638.35, 99,856.68 and 29,177.47

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Solution

The fourth proportional to 66,638.35, 99,856.68 and 29,177.47 is: 43,722.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,638.35 : 99,856.68 = 29,177.47 : x
  2. Step 2: Convert to fraction form
    66,638.35/99,856.68 = 29,177.47/x
  3. Step 3: Cross multiply
    66,638.35x = 99,856.68 × 29,177.47
  4. Step 4: Simplify right side
    66,638.35x = 2,913,565,285.00
  5. Step 5: Solve for x
    x = 2,913,565,285.00/66,638.35
  6. Step 6: Final answer
    x = 43,722.05

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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.