Home / 47,490.75-71,209.80-19,430.49

Finding the Fourth Proportional to 47,490.75, 71,209.80 and 19,430.49

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Solution

The fourth proportional to 47,490.75, 71,209.80 and 19,430.49 is: 29,134.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,490.75 : 71,209.80 = 19,430.49 : x
  2. Step 2: Convert to fraction form
    47,490.75/71,209.80 = 19,430.49/x
  3. Step 3: Cross multiply
    47,490.75x = 71,209.80 × 19,430.49
  4. Step 4: Simplify right side
    47,490.75x = 1,383,641,306.80
  5. Step 5: Solve for x
    x = 1,383,641,306.80/47,490.75
  6. Step 6: Final answer
    x = 29,134.96

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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.