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Finding the Fourth Proportional to 64,489.60, 96,604.80 and 33,342.40

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Solution

The fourth proportional to 64,489.60, 96,604.80 and 33,342.40 is: 49,946.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,489.60 : 96,604.80 = 33,342.40 : x
  2. Step 2: Convert to fraction form
    64,489.60/96,604.80 = 33,342.40/x
  3. Step 3: Cross multiply
    64,489.60x = 96,604.80 × 33,342.40
  4. Step 4: Simplify right side
    64,489.60x = 3,221,035,883.52
  5. Step 5: Solve for x
    x = 3,221,035,883.52/64,489.60
  6. Step 6: Final answer
    x = 49,946.59

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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.