Home / 57,739.26-79,636.05-39,864.18

Finding the Fourth Proportional to 57,739.26, 79,636.05 and 39,864.18

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Solution

The fourth proportional to 57,739.26, 79,636.05 and 39,864.18 is: 54,982.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,739.26 : 79,636.05 = 39,864.18 : x
  2. Step 2: Convert to fraction form
    57,739.26/79,636.05 = 39,864.18/x
  3. Step 3: Cross multiply
    57,739.26x = 79,636.05 × 39,864.18
  4. Step 4: Simplify right side
    57,739.26x = 3,174,625,831.69
  5. Step 5: Solve for x
    x = 3,174,625,831.69/57,739.26
  6. Step 6: Final answer
    x = 54,982.10

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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.