Home / 89,927.30-135,000.30-45,531.20

Finding the Fourth Proportional to 89,927.30, 135,000.30 and 45,531.20

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Solution

The fourth proportional to 89,927.30, 135,000.30 and 45,531.20 is: 68,352.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,927.30 : 135,000.30 = 45,531.20 : x
  2. Step 2: Convert to fraction form
    89,927.30/135,000.30 = 45,531.20/x
  3. Step 3: Cross multiply
    89,927.30x = 135,000.30 × 45,531.20
  4. Step 4: Simplify right side
    89,927.30x = 6,146,725,659.36
  5. Step 5: Solve for x
    x = 6,146,725,659.36/89,927.30
  6. Step 6: Final answer
    x = 68,352.17

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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.