Home / 51,005.16-70,453.62-39,213.48

Finding the Fourth Proportional to 51,005.16, 70,453.62 and 39,213.48

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Solution

The fourth proportional to 51,005.16, 70,453.62 and 39,213.48 is: 54,165.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,005.16 : 70,453.62 = 39,213.48 : x
  2. Step 2: Convert to fraction form
    51,005.16/70,453.62 = 39,213.48/x
  3. Step 3: Cross multiply
    51,005.16x = 70,453.62 × 39,213.48
  4. Step 4: Simplify right side
    51,005.16x = 2,762,731,618.80
  5. Step 5: Solve for x
    x = 2,762,731,618.80/51,005.16
  6. Step 6: Final answer
    x = 54,165.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.