Home / 89,157.30-133,779.48-39,231.12

Finding the Fourth Proportional to 89,157.30, 133,779.48 and 39,231.12

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Solution

The fourth proportional to 89,157.30, 133,779.48 and 39,231.12 is: 58,865.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,157.30 : 133,779.48 = 39,231.12 : x
  2. Step 2: Convert to fraction form
    89,157.30/133,779.48 = 39,231.12/x
  3. Step 3: Cross multiply
    89,157.30x = 133,779.48 × 39,231.12
  4. Step 4: Simplify right side
    89,157.30x = 5,248,318,833.42
  5. Step 5: Solve for x
    x = 5,248,318,833.42/89,157.30
  6. Step 6: Final answer
    x = 58,865.83

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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.