Home / 57,782.36-79,695.77-49,729.41

Finding the Fourth Proportional to 57,782.36, 79,695.77 and 49,729.41

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Solution

The fourth proportional to 57,782.36, 79,695.77 and 49,729.41 is: 68,588.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,782.36 : 79,695.77 = 49,729.41 : x
  2. Step 2: Convert to fraction form
    57,782.36/79,695.77 = 49,729.41/x
  3. Step 3: Cross multiply
    57,782.36x = 79,695.77 × 49,729.41
  4. Step 4: Simplify right side
    57,782.36x = 3,963,223,372.95
  5. Step 5: Solve for x
    x = 3,963,223,372.95/57,782.36
  6. Step 6: Final answer
    x = 68,588.81

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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.