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Finding the Fourth Proportional to 128,541.52, 192,810.21 and 35,047.27

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Solution

The fourth proportional to 128,541.52, 192,810.21 and 35,047.27 is: 52,570.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,541.52 : 192,810.21 = 35,047.27 : x
  2. Step 2: Convert to fraction form
    128,541.52/192,810.21 = 35,047.27/x
  3. Step 3: Cross multiply
    128,541.52x = 192,810.21 × 35,047.27
  4. Step 4: Simplify right side
    128,541.52x = 6,757,471,488.63
  5. Step 5: Solve for x
    x = 6,757,471,488.63/128,541.52
  6. Step 6: Final answer
    x = 52,570.34

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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.