Home / 86,507.33-119,379.90-48,781.31

Finding the Fourth Proportional to 86,507.33, 119,379.90 and 48,781.31

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Solution

The fourth proportional to 86,507.33, 119,379.90 and 48,781.31 is: 67,318.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,507.33 : 119,379.90 = 48,781.31 : x
  2. Step 2: Convert to fraction form
    86,507.33/119,379.90 = 48,781.31/x
  3. Step 3: Cross multiply
    86,507.33x = 119,379.90 × 48,781.31
  4. Step 4: Simplify right side
    86,507.33x = 5,823,507,909.67
  5. Step 5: Solve for x
    x = 5,823,507,909.67/86,507.33
  6. Step 6: Final answer
    x = 67,318.09

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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.