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Finding the Fourth Proportional to 53,328.53, 79,984.03 and 17,790.11

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Solution

The fourth proportional to 53,328.53, 79,984.03 and 17,790.11 is: 26,682.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,328.53 : 79,984.03 = 17,790.11 : x
  2. Step 2: Convert to fraction form
    53,328.53/79,984.03 = 17,790.11/x
  3. Step 3: Cross multiply
    53,328.53x = 79,984.03 × 17,790.11
  4. Step 4: Simplify right side
    53,328.53x = 1,422,924,847.43
  5. Step 5: Solve for x
    x = 1,422,924,847.43/53,328.53
  6. Step 6: Final answer
    x = 26,682.25

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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.