Home / 171,629.20-257,468.10-53,288.20

Finding the Fourth Proportional to 171,629.20, 257,468.10 and 53,288.20

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Solution

The fourth proportional to 171,629.20, 257,468.10 and 53,288.20 is: 79,939.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,629.20 : 257,468.10 = 53,288.20 : x
  2. Step 2: Convert to fraction form
    171,629.20/257,468.10 = 53,288.20/x
  3. Step 3: Cross multiply
    171,629.20x = 257,468.10 × 53,288.20
  4. Step 4: Simplify right side
    171,629.20x = 13,720,011,606.42
  5. Step 5: Solve for x
    x = 13,720,011,606.42/171,629.20
  6. Step 6: Final answer
    x = 79,939.84

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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.