Home / 72,399.30-108,625.95-30,284.16

Finding the Fourth Proportional to 72,399.30, 108,625.95 and 30,284.16

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Solution

The fourth proportional to 72,399.30, 108,625.95 and 30,284.16 is: 45,437.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,399.30 : 108,625.95 = 30,284.16 : x
  2. Step 2: Convert to fraction form
    72,399.30/108,625.95 = 30,284.16/x
  3. Step 3: Cross multiply
    72,399.30x = 108,625.95 × 30,284.16
  4. Step 4: Simplify right side
    72,399.30x = 3,289,645,649.95
  5. Step 5: Solve for x
    x = 3,289,645,649.95/72,399.30
  6. Step 6: Final answer
    x = 45,437.53

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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.