Home / 85,445.48-128,174.50-32,855.02

Finding the Fourth Proportional to 85,445.48, 128,174.50 and 32,855.02

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Solution

The fourth proportional to 85,445.48, 128,174.50 and 32,855.02 is: 49,284.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,445.48 : 128,174.50 = 32,855.02 : x
  2. Step 2: Convert to fraction form
    85,445.48/128,174.50 = 32,855.02/x
  3. Step 3: Cross multiply
    85,445.48x = 128,174.50 × 32,855.02
  4. Step 4: Simplify right side
    85,445.48x = 4,211,175,481.62
  5. Step 5: Solve for x
    x = 4,211,175,481.62/85,445.48
  6. Step 6: Final answer
    x = 49,284.94

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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.