Home / 89,864.30-134,905.80-45,468.20

Finding the Fourth Proportional to 89,864.30, 134,905.80 and 45,468.20

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Solution

The fourth proportional to 89,864.30, 134,905.80 and 45,468.20 is: 68,257.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,864.30 : 134,905.80 = 45,468.20 : x
  2. Step 2: Convert to fraction form
    89,864.30/134,905.80 = 45,468.20/x
  3. Step 3: Cross multiply
    89,864.30x = 134,905.80 × 45,468.20
  4. Step 4: Simplify right side
    89,864.30x = 6,133,923,895.56
  5. Step 5: Solve for x
    x = 6,133,923,895.56/89,864.30
  6. Step 6: Final answer
    x = 68,257.63

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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.