Home / 57,490.23-86,231.75-21,459.65

Finding the Fourth Proportional to 57,490.23, 86,231.75 and 21,459.65

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Solution

The fourth proportional to 57,490.23, 86,231.75 and 21,459.65 is: 32,188.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,490.23 : 86,231.75 = 21,459.65 : x
  2. Step 2: Convert to fraction form
    57,490.23/86,231.75 = 21,459.65/x
  3. Step 3: Cross multiply
    57,490.23x = 86,231.75 × 21,459.65
  4. Step 4: Simplify right side
    57,490.23x = 1,850,503,282.17
  5. Step 5: Solve for x
    x = 1,850,503,282.17/57,490.23
  6. Step 6: Final answer
    x = 32,188.13

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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.