Home / 72,359.12-108,501.66-30,227.71

Finding the Fourth Proportional to 72,359.12, 108,501.66 and 30,227.71

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Solution

The fourth proportional to 72,359.12, 108,501.66 and 30,227.71 is: 45,326.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,359.12 : 108,501.66 = 30,227.71 : x
  2. Step 2: Convert to fraction form
    72,359.12/108,501.66 = 30,227.71/x
  3. Step 3: Cross multiply
    72,359.12x = 108,501.66 × 30,227.71
  4. Step 4: Simplify right side
    72,359.12x = 3,279,756,713.00
  5. Step 5: Solve for x
    x = 3,279,756,713.00/72,359.12
  6. Step 6: Final answer
    x = 45,326.10

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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.