Home / 57,412.97-79,220.32-31,918.62

Finding the Fourth Proportional to 57,412.97, 79,220.32 and 31,918.62

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Solution

The fourth proportional to 57,412.97, 79,220.32 and 31,918.62 is: 44,042.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,412.97 : 79,220.32 = 31,918.62 : x
  2. Step 2: Convert to fraction form
    57,412.97/79,220.32 = 31,918.62/x
  3. Step 3: Cross multiply
    57,412.97x = 79,220.32 × 31,918.62
  4. Step 4: Simplify right side
    57,412.97x = 2,528,603,210.56
  5. Step 5: Solve for x
    x = 2,528,603,210.56/57,412.97
  6. Step 6: Final answer
    x = 44,042.37

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1.5x scale

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.