Home / 64,819.20-89,546.40-60,393.60

Finding the Fourth Proportional to 64,819.20, 89,546.40 and 60,393.60

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Solution

The fourth proportional to 64,819.20, 89,546.40 and 60,393.60 is: 83,432.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,819.20 : 89,546.40 = 60,393.60 : x
  2. Step 2: Convert to fraction form
    64,819.20/89,546.40 = 60,393.60/x
  3. Step 3: Cross multiply
    64,819.20x = 89,546.40 × 60,393.60
  4. Step 4: Simplify right side
    64,819.20x = 5,408,029,463.04
  5. Step 5: Solve for x
    x = 5,408,029,463.04/64,819.20
  6. Step 6: Final answer
    x = 83,432.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.