Home / 68,128.02-94,002.30-39,828.24

Finding the Fourth Proportional to 68,128.02, 94,002.30 and 39,828.24

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Solution

The fourth proportional to 68,128.02, 94,002.30 and 39,828.24 is: 54,954.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,128.02 : 94,002.30 = 39,828.24 : x
  2. Step 2: Convert to fraction form
    68,128.02/94,002.30 = 39,828.24/x
  3. Step 3: Cross multiply
    68,128.02x = 94,002.30 × 39,828.24
  4. Step 4: Simplify right side
    68,128.02x = 3,743,946,164.95
  5. Step 5: Solve for x
    x = 3,743,946,164.95/68,128.02
  6. Step 6: Final answer
    x = 54,954.57

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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.