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Finding the Fourth Proportional to 53,225.65, 79,838.49 and 21,652.89

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Solution

The fourth proportional to 53,225.65, 79,838.49 and 21,652.89 is: 32,479.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,225.65 : 79,838.49 = 21,652.89 : x
  2. Step 2: Convert to fraction form
    53,225.65/79,838.49 = 21,652.89/x
  3. Step 3: Cross multiply
    53,225.65x = 79,838.49 × 21,652.89
  4. Step 4: Simplify right side
    53,225.65x = 1,728,733,640.84
  5. Step 5: Solve for x
    x = 1,728,733,640.84/53,225.65
  6. Step 6: Final answer
    x = 32,479.33

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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.