Home / 57,357.81-79,156.43-31,864.20

Finding the Fourth Proportional to 57,357.81, 79,156.43 and 31,864.20

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Solution

The fourth proportional to 57,357.81, 79,156.43 and 31,864.20 is: 43,974.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,357.81 : 79,156.43 = 31,864.20 : x
  2. Step 2: Convert to fraction form
    57,357.81/79,156.43 = 31,864.20/x
  3. Step 3: Cross multiply
    57,357.81x = 79,156.43 × 31,864.20
  4. Step 4: Simplify right side
    57,357.81x = 2,522,256,157.49
  5. Step 5: Solve for x
    x = 2,522,256,157.49/57,357.81
  6. Step 6: Final answer
    x = 43,974.07

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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.