Home / 51,821.92-71,548.68-39,864.16

Finding the Fourth Proportional to 51,821.92, 71,548.68 and 39,864.16

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Solution

The fourth proportional to 51,821.92, 71,548.68 and 39,864.16 is: 55,039.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,821.92 : 71,548.68 = 39,864.16 : x
  2. Step 2: Convert to fraction form
    51,821.92/71,548.68 = 39,864.16/x
  3. Step 3: Cross multiply
    51,821.92x = 71,548.68 × 39,864.16
  4. Step 4: Simplify right side
    51,821.92x = 2,852,228,027.31
  5. Step 5: Solve for x
    x = 2,852,228,027.31/51,821.92
  6. Step 6: Final answer
    x = 55,039.03

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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.