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Finding the Fourth Proportional to 53,407.63, 80,105.68 and 17,864.92

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Solution

The fourth proportional to 53,407.63, 80,105.68 and 17,864.92 is: 26,795.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,407.63 : 80,105.68 = 17,864.92 : x
  2. Step 2: Convert to fraction form
    53,407.63/80,105.68 = 17,864.92/x
  3. Step 3: Cross multiply
    53,407.63x = 80,105.68 × 17,864.92
  4. Step 4: Simplify right side
    53,407.63x = 1,431,081,311.07
  5. Step 5: Solve for x
    x = 1,431,081,311.07/53,407.63
  6. Step 6: Final answer
    x = 26,795.45

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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.