Home / 89,819.40-134,664.30-58,672.20

Finding the Fourth Proportional to 89,819.40, 134,664.30 and 58,672.20

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Solution

The fourth proportional to 89,819.40, 134,664.30 and 58,672.20 is: 87,965.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,819.40 : 134,664.30 = 58,672.20 : x
  2. Step 2: Convert to fraction form
    89,819.40/134,664.30 = 58,672.20/x
  3. Step 3: Cross multiply
    89,819.40x = 134,664.30 × 58,672.20
  4. Step 4: Simplify right side
    89,819.40x = 7,901,050,742.46
  5. Step 5: Solve for x
    x = 7,901,050,742.46/89,819.40
  6. Step 6: Final answer
    x = 87,965.97

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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.