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Finding the Fourth Proportional to 53,412.79, 80,103.03 and 17,865.03

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Solution

The fourth proportional to 53,412.79, 80,103.03 and 17,865.03 is: 26,792.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,412.79 : 80,103.03 = 17,865.03 : x
  2. Step 2: Convert to fraction form
    53,412.79/80,103.03 = 17,865.03/x
  3. Step 3: Cross multiply
    53,412.79x = 80,103.03 × 17,865.03
  4. Step 4: Simplify right side
    53,412.79x = 1,431,043,034.04
  5. Step 5: Solve for x
    x = 1,431,043,034.04/53,412.79
  6. Step 6: Final answer
    x = 26,792.14

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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.