Home / 72,125.97-108,189.36-19,535.91

Finding the Fourth Proportional to 72,125.97, 108,189.36 and 19,535.91

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Solution

The fourth proportional to 72,125.97, 108,189.36 and 19,535.91 is: 29,303.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,125.97 : 108,189.36 = 19,535.91 : x
  2. Step 2: Convert to fraction form
    72,125.97/108,189.36 = 19,535.91/x
  3. Step 3: Cross multiply
    72,125.97x = 108,189.36 × 19,535.91
  4. Step 4: Simplify right side
    72,125.97x = 2,113,577,599.92
  5. Step 5: Solve for x
    x = 2,113,577,599.92/72,125.97
  6. Step 6: Final answer
    x = 29,303.97

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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.