Home / 57,109.33-78,807.99-31,267.18

Finding the Fourth Proportional to 57,109.33, 78,807.99 and 31,267.18

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Solution

The fourth proportional to 57,109.33, 78,807.99 and 31,267.18 is: 43,147.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,109.33 : 78,807.99 = 31,267.18 : x
  2. Step 2: Convert to fraction form
    57,109.33/78,807.99 = 31,267.18/x
  3. Step 3: Cross multiply
    57,109.33x = 78,807.99 × 31,267.18
  4. Step 4: Simplify right side
    57,109.33x = 2,464,103,608.77
  5. Step 5: Solve for x
    x = 2,464,103,608.77/57,109.33
  6. Step 6: Final answer
    x = 43,147.13

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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.