Home / 72,150.14-108,247.05-51,130.85

Finding the Fourth Proportional to 72,150.14, 108,247.05 and 51,130.85

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Solution

The fourth proportional to 72,150.14, 108,247.05 and 51,130.85 is: 76,711.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,150.14 : 108,247.05 = 51,130.85 : x
  2. Step 2: Convert to fraction form
    72,150.14/108,247.05 = 51,130.85/x
  3. Step 3: Cross multiply
    72,150.14x = 108,247.05 × 51,130.85
  4. Step 4: Simplify right side
    72,150.14x = 5,534,763,135.26
  5. Step 5: Solve for x
    x = 5,534,763,135.26/72,150.14
  6. Step 6: Final answer
    x = 76,711.74

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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.