Home / 68,133.02-102,203.85-21,387.74

Finding the Fourth Proportional to 68,133.02, 102,203.85 and 21,387.74

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Solution

The fourth proportional to 68,133.02, 102,203.85 and 21,387.74 is: 32,082.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,133.02 : 102,203.85 = 21,387.74 : x
  2. Step 2: Convert to fraction form
    68,133.02/102,203.85 = 21,387.74/x
  3. Step 3: Cross multiply
    68,133.02x = 102,203.85 × 21,387.74
  4. Step 4: Simplify right side
    68,133.02x = 2,185,909,370.80
  5. Step 5: Solve for x
    x = 2,185,909,370.80/68,133.02
  6. Step 6: Final answer
    x = 32,082.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.