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Finding the Fourth Proportional to 48,107.91, 72,161.70 and 13,047.57

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Solution

The fourth proportional to 48,107.91, 72,161.70 and 13,047.57 is: 19,571.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,107.91 : 72,161.70 = 13,047.57 : x
  2. Step 2: Convert to fraction form
    48,107.91/72,161.70 = 13,047.57/x
  3. Step 3: Cross multiply
    48,107.91x = 72,161.70 × 13,047.57
  4. Step 4: Simplify right side
    48,107.91x = 941,534,832.07
  5. Step 5: Solve for x
    x = 941,534,832.07/48,107.91
  6. Step 6: Final answer
    x = 19,571.31

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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.