Home / 79,437.22-119,155.75-20,272.90

Finding the Fourth Proportional to 79,437.22, 119,155.75 and 20,272.90

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Solution

The fourth proportional to 79,437.22, 119,155.75 and 20,272.90 is: 30,409.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,437.22 : 119,155.75 = 20,272.90 : x
  2. Step 2: Convert to fraction form
    79,437.22/119,155.75 = 20,272.90/x
  3. Step 3: Cross multiply
    79,437.22x = 119,155.75 × 20,272.90
  4. Step 4: Simplify right side
    79,437.22x = 2,415,632,604.18
  5. Step 5: Solve for x
    x = 2,415,632,604.18/79,437.22
  6. Step 6: Final answer
    x = 30,409.33

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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.