Home / 51,287.62-70,699.38-39,937.09

Finding the Fourth Proportional to 51,287.62, 70,699.38 and 39,937.09

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Solution

The fourth proportional to 51,287.62, 70,699.38 and 39,937.09 is: 55,052.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,287.62 : 70,699.38 = 39,937.09 : x
  2. Step 2: Convert to fraction form
    51,287.62/70,699.38 = 39,937.09/x
  3. Step 3: Cross multiply
    51,287.62x = 70,699.38 × 39,937.09
  4. Step 4: Simplify right side
    51,287.62x = 2,823,527,502.00
  5. Step 5: Solve for x
    x = 2,823,527,502.00/51,287.62
  6. Step 6: Final answer
    x = 55,052.81

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1.5x scale

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.