Home / 57,176.28-78,843.78-45,220.68

Finding the Fourth Proportional to 57,176.28, 78,843.78 and 45,220.68

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Solution

The fourth proportional to 57,176.28, 78,843.78 and 45,220.68 is: 62,357.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,176.28 : 78,843.78 = 45,220.68 : x
  2. Step 2: Convert to fraction form
    57,176.28/78,843.78 = 45,220.68/x
  3. Step 3: Cross multiply
    57,176.28x = 78,843.78 × 45,220.68
  4. Step 4: Simplify right side
    57,176.28x = 3,565,369,345.37
  5. Step 5: Solve for x
    x = 3,565,369,345.37/57,176.28
  6. Step 6: Final answer
    x = 62,357.49

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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.