Home / 71,779.08-107,672.94-30,229.32

Finding the Fourth Proportional to 71,779.08, 107,672.94 and 30,229.32

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Solution

The fourth proportional to 71,779.08, 107,672.94 and 30,229.32 is: 45,345.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,779.08 : 107,672.94 = 30,229.32 : x
  2. Step 2: Convert to fraction form
    71,779.08/107,672.94 = 30,229.32/x
  3. Step 3: Cross multiply
    71,779.08x = 107,672.94 × 30,229.32
  4. Step 4: Simplify right side
    71,779.08x = 3,254,879,758.60
  5. Step 5: Solve for x
    x = 3,254,879,758.60/71,779.08
  6. Step 6: Final answer
    x = 45,345.80

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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.