Home / 57,969.72-79,979.04-40,058.28

Finding the Fourth Proportional to 57,969.72, 79,979.04 and 40,058.28

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Solution

The fourth proportional to 57,969.72, 79,979.04 and 40,058.28 is: 55,267.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,969.72 : 79,979.04 = 40,058.28 : x
  2. Step 2: Convert to fraction form
    57,969.72/79,979.04 = 40,058.28/x
  3. Step 3: Cross multiply
    57,969.72x = 79,979.04 × 40,058.28
  4. Step 4: Simplify right side
    57,969.72x = 3,203,822,778.45
  5. Step 5: Solve for x
    x = 3,203,822,778.45/57,969.72
  6. Step 6: Final answer
    x = 55,267.18

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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.