Home / 47,864.12-71,648.55-43,781.72

Finding the Fourth Proportional to 47,864.12, 71,648.55 and 43,781.72

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Solution

The fourth proportional to 47,864.12, 71,648.55 and 43,781.72 is: 65,537.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,864.12 : 71,648.55 = 43,781.72 : x
  2. Step 2: Convert to fraction form
    47,864.12/71,648.55 = 43,781.72/x
  3. Step 3: Cross multiply
    47,864.12x = 71,648.55 × 43,781.72
  4. Step 4: Simplify right side
    47,864.12x = 3,136,896,396.26
  5. Step 5: Solve for x
    x = 3,136,896,396.26/47,864.12
  6. Step 6: Final answer
    x = 65,537.54

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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.