Home / 57,618.50-86,427.75-13,842.50

Finding the Fourth Proportional to 57,618.50, 86,427.75 and 13,842.50

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Solution

The fourth proportional to 57,618.50, 86,427.75 and 13,842.50 is: 20,763.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,618.50 : 86,427.75 = 13,842.50 : x
  2. Step 2: Convert to fraction form
    57,618.50/86,427.75 = 13,842.50/x
  3. Step 3: Cross multiply
    57,618.50x = 86,427.75 × 13,842.50
  4. Step 4: Simplify right side
    57,618.50x = 1,196,376,129.38
  5. Step 5: Solve for x
    x = 1,196,376,129.38/57,618.50
  6. Step 6: Final answer
    x = 20,763.75

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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.