Home / 72,140.27-108,210.37-19,549.75

Finding the Fourth Proportional to 72,140.27, 108,210.37 and 19,549.75

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Solution

The fourth proportional to 72,140.27, 108,210.37 and 19,549.75 is: 29,324.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,140.27 : 108,210.37 = 19,549.75 : x
  2. Step 2: Convert to fraction form
    72,140.27/108,210.37 = 19,549.75/x
  3. Step 3: Cross multiply
    72,140.27x = 108,210.37 × 19,549.75
  4. Step 4: Simplify right side
    72,140.27x = 2,115,485,680.91
  5. Step 5: Solve for x
    x = 2,115,485,680.91/72,140.27
  6. Step 6: Final answer
    x = 29,324.62

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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.