Home / 72,826.26-109,239.34-20,235.72

Finding the Fourth Proportional to 72,826.26, 109,239.34 and 20,235.72

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Solution

The fourth proportional to 72,826.26, 109,239.34 and 20,235.72 is: 30,353.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,826.26 : 109,239.34 = 20,235.72 : x
  2. Step 2: Convert to fraction form
    72,826.26/109,239.34 = 20,235.72/x
  3. Step 3: Cross multiply
    72,826.26x = 109,239.34 × 20,235.72
  4. Step 4: Simplify right side
    72,826.26x = 2,210,536,697.22
  5. Step 5: Solve for x
    x = 2,210,536,697.22/72,826.26
  6. Step 6: Final answer
    x = 30,353.57

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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.