Home / 89,027.20-133,425.60-64,374.40

Finding the Fourth Proportional to 89,027.20, 133,425.60 and 64,374.40

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Solution

The fourth proportional to 89,027.20, 133,425.60 and 64,374.40 is: 96,478.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,027.20 : 133,425.60 = 64,374.40 : x
  2. Step 2: Convert to fraction form
    89,027.20/133,425.60 = 64,374.40/x
  3. Step 3: Cross multiply
    89,027.20x = 133,425.60 × 64,374.40
  4. Step 4: Simplify right side
    89,027.20x = 8,589,192,944.64
  5. Step 5: Solve for x
    x = 8,589,192,944.64/89,027.20
  6. Step 6: Final answer
    x = 96,478.30

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1.5x scale

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.