Home / 85,207.96-117,587.22-51,235.90

Finding the Fourth Proportional to 85,207.96, 117,587.22 and 51,235.90

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Solution

The fourth proportional to 85,207.96, 117,587.22 and 51,235.90 is: 70,705.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,207.96 : 117,587.22 = 51,235.90 : x
  2. Step 2: Convert to fraction form
    85,207.96/117,587.22 = 51,235.90/x
  3. Step 3: Cross multiply
    85,207.96x = 117,587.22 × 51,235.90
  4. Step 4: Simplify right side
    85,207.96x = 6,024,687,045.20
  5. Step 5: Solve for x
    x = 6,024,687,045.20/85,207.96
  6. Step 6: Final answer
    x = 70,705.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.