Home / 57,119.36-78,827.64-31,628.55

Finding the Fourth Proportional to 57,119.36, 78,827.64 and 31,628.55

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Solution

The fourth proportional to 57,119.36, 78,827.64 and 31,628.55 is: 43,649.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,119.36 : 78,827.64 = 31,628.55 : x
  2. Step 2: Convert to fraction form
    57,119.36/78,827.64 = 31,628.55/x
  3. Step 3: Cross multiply
    57,119.36x = 78,827.64 × 31,628.55
  4. Step 4: Simplify right side
    57,119.36x = 2,493,203,930.65
  5. Step 5: Solve for x
    x = 2,493,203,930.65/57,119.36
  6. Step 6: Final answer
    x = 43,649.01

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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.