Home / 67,188.56-100,779.22-20,437.80

Finding the Fourth Proportional to 67,188.56, 100,779.22 and 20,437.80

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Solution

The fourth proportional to 67,188.56, 100,779.22 and 20,437.80 is: 30,655.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,188.56 : 100,779.22 = 20,437.80 : x
  2. Step 2: Convert to fraction form
    67,188.56/100,779.22 = 20,437.80/x
  3. Step 3: Cross multiply
    67,188.56x = 100,779.22 × 20,437.80
  4. Step 4: Simplify right side
    67,188.56x = 2,059,705,542.52
  5. Step 5: Solve for x
    x = 2,059,705,542.52/67,188.56
  6. Step 6: Final answer
    x = 30,655.60

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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.