Home / 90,753.54-136,144.86-31,606.02

Finding the Fourth Proportional to 90,753.54, 136,144.86 and 31,606.02

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Solution

The fourth proportional to 90,753.54, 136,144.86 and 31,606.02 is: 47,414.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,753.54 : 136,144.86 = 31,606.02 : x
  2. Step 2: Convert to fraction form
    90,753.54/136,144.86 = 31,606.02/x
  3. Step 3: Cross multiply
    90,753.54x = 136,144.86 × 31,606.02
  4. Step 4: Simplify right side
    90,753.54x = 4,302,997,168.06
  5. Step 5: Solve for x
    x = 4,302,997,168.06/90,753.54
  6. Step 6: Final answer
    x = 47,414.10

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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.