Home / 79,437.23-119,155.75-20,272.91

Finding the Fourth Proportional to 79,437.23, 119,155.75 and 20,272.91

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Solution

The fourth proportional to 79,437.23, 119,155.75 and 20,272.91 is: 30,409.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,437.23 : 119,155.75 = 20,272.91 : x
  2. Step 2: Convert to fraction form
    79,437.23/119,155.75 = 20,272.91/x
  3. Step 3: Cross multiply
    79,437.23x = 119,155.75 × 20,272.91
  4. Step 4: Simplify right side
    79,437.23x = 2,415,633,149.27
  5. Step 5: Solve for x
    x = 2,415,633,149.27/79,437.23
  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.