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Finding the Fourth Proportional to 64,624.64, 96,937 and 20,254.84

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Solution

The fourth proportional to 64,624.64, 96,937 and 20,254.84 is: 30,382.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,624.64 : 96,937 = 20,254.84 : x
  2. Step 2: Convert to fraction form
    64,624.64/96,937 = 20,254.84/x
  3. Step 3: Cross multiply
    64,624.64x = 96,937 × 20,254.84
  4. Step 4: Simplify right side
    64,624.64x = 1,963,443,425.08
  5. Step 5: Solve for x
    x = 1,963,443,425.08/64,624.64
  6. Step 6: Final answer
    x = 30,382.27

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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.