Home / 272,372.02-408,623.64-85,383.52

Finding the Fourth Proportional to 272,372.02, 408,623.64 and 85,383.52

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Solution

The fourth proportional to 272,372.02, 408,623.64 and 85,383.52 is: 128,095.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,372.02 : 408,623.64 = 85,383.52 : x
  2. Step 2: Convert to fraction form
    272,372.02/408,623.64 = 85,383.52/x
  3. Step 3: Cross multiply
    272,372.02x = 408,623.64 × 85,383.52
  4. Step 4: Simplify right side
    272,372.02x = 34,889,724,738.41
  5. Step 5: Solve for x
    x = 34,889,724,738.41/272,372.02
  6. Step 6: Final answer
    x = 128,095.85

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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.