Home / 72,131.10-108,177.21-48,900.30

Finding the Fourth Proportional to 72,131.10, 108,177.21 and 48,900.30

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Solution

The fourth proportional to 72,131.10, 108,177.21 and 48,900.30 is: 73,337.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,131.10 : 108,177.21 = 48,900.30 : x
  2. Step 2: Convert to fraction form
    72,131.10/108,177.21 = 48,900.30/x
  3. Step 3: Cross multiply
    72,131.10x = 108,177.21 × 48,900.30
  4. Step 4: Simplify right side
    72,131.10x = 5,289,898,022.16
  5. Step 5: Solve for x
    x = 5,289,898,022.16/72,131.10
  6. Step 6: Final answer
    x = 73,337.27

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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.