Home / 68,388.02-94,391.21-40,102.82

Finding the Fourth Proportional to 68,388.02, 94,391.21 and 40,102.82

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Solution

The fourth proportional to 68,388.02, 94,391.21 and 40,102.82 is: 55,351.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,388.02 : 94,391.21 = 40,102.82 : x
  2. Step 2: Convert to fraction form
    68,388.02/94,391.21 = 40,102.82/x
  3. Step 3: Cross multiply
    68,388.02x = 94,391.21 × 40,102.82
  4. Step 4: Simplify right side
    68,388.02x = 3,785,353,031.74
  5. Step 5: Solve for x
    x = 3,785,353,031.74/68,388.02
  6. Step 6: Final answer
    x = 55,351.12

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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.