Home / 57,076.13-85,653.09-20,140.13

Finding the Fourth Proportional to 57,076.13, 85,653.09 and 20,140.13

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Solution

The fourth proportional to 57,076.13, 85,653.09 and 20,140.13 is: 30,223.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,076.13 : 85,653.09 = 20,140.13 : x
  2. Step 2: Convert to fraction form
    57,076.13/85,653.09 = 20,140.13/x
  3. Step 3: Cross multiply
    57,076.13x = 85,653.09 × 20,140.13
  4. Step 4: Simplify right side
    57,076.13x = 1,725,063,939.24
  5. Step 5: Solve for x
    x = 1,725,063,939.24/57,076.13
  6. Step 6: Final answer
    x = 30,223.91

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1.5x scale

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.