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Finding the Fourth Proportional to 64,284.80, 96,404.58 and 19,292.72

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Solution

The fourth proportional to 64,284.80, 96,404.58 and 19,292.72 is: 28,932.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,284.80 : 96,404.58 = 19,292.72 : x
  2. Step 2: Convert to fraction form
    64,284.80/96,404.58 = 19,292.72/x
  3. Step 3: Cross multiply
    64,284.80x = 96,404.58 × 19,292.72
  4. Step 4: Simplify right side
    64,284.80x = 1,859,906,086.63
  5. Step 5: Solve for x
    x = 1,859,906,086.63/64,284.80
  6. Step 6: Final answer
    x = 28,932.29

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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.