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Finding the Fourth Proportional to 64,027.20, 96,040.80 and 56,251.20

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Solution

The fourth proportional to 64,027.20, 96,040.80 and 56,251.20 is: 84,376.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,027.20 : 96,040.80 = 56,251.20 : x
  2. Step 2: Convert to fraction form
    64,027.20/96,040.80 = 56,251.20/x
  3. Step 3: Cross multiply
    64,027.20x = 96,040.80 × 56,251.20
  4. Step 4: Simplify right side
    64,027.20x = 5,402,410,248.96
  5. Step 5: Solve for x
    x = 5,402,410,248.96/64,027.20
  6. Step 6: Final answer
    x = 84,376.80

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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.