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Finding the Fourth Proportional to 64,514.70, 96,678.27 and 28,447.29

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Solution

The fourth proportional to 64,514.70, 96,678.27 and 28,447.29 is: 42,629.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,514.70 : 96,678.27 = 28,447.29 : x
  2. Step 2: Convert to fraction form
    64,514.70/96,678.27 = 28,447.29/x
  3. Step 3: Cross multiply
    64,514.70x = 96,678.27 × 28,447.29
  4. Step 4: Simplify right side
    64,514.70x = 2,750,234,783.39
  5. Step 5: Solve for x
    x = 2,750,234,783.39/64,514.70
  6. Step 6: Final answer
    x = 42,629.58

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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.