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Finding the Fourth Proportional to 88,621, 132,856.98 and 36,068.20

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Solution

The fourth proportional to 88,621, 132,856.98 and 36,068.20 is: 54,071.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,621 : 132,856.98 = 36,068.20 : x
  2. Step 2: Convert to fraction form
    88,621/132,856.98 = 36,068.20/x
  3. Step 3: Cross multiply
    88,621x = 132,856.98 × 36,068.20
  4. Step 4: Simplify right side
    88,621x = 4,791,912,126.04
  5. Step 5: Solve for x
    x = 4,791,912,126.04/88,621
  6. Step 6: Final answer
    x = 54,071.97

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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.