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Finding the Fourth Proportional to 64,289.71, 88,714.87 and 35,991.55

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Solution

The fourth proportional to 64,289.71, 88,714.87 and 35,991.55 is: 49,665.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,289.71 : 88,714.87 = 35,991.55 : x
  2. Step 2: Convert to fraction form
    64,289.71/88,714.87 = 35,991.55/x
  3. Step 3: Cross multiply
    64,289.71x = 88,714.87 × 35,991.55
  4. Step 4: Simplify right side
    64,289.71x = 3,192,985,679.35
  5. Step 5: Solve for x
    x = 3,192,985,679.35/64,289.71
  6. Step 6: Final answer
    x = 49,665.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.