Home / 72,826.04-109,239.32-20,235.53

Finding the Fourth Proportional to 72,826.04, 109,239.32 and 20,235.53

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Solution

The fourth proportional to 72,826.04, 109,239.32 and 20,235.53 is: 30,353.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,826.04 : 109,239.32 = 20,235.53 : x
  2. Step 2: Convert to fraction form
    72,826.04/109,239.32 = 20,235.53/x
  3. Step 3: Cross multiply
    72,826.04x = 109,239.32 × 20,235.53
  4. Step 4: Simplify right side
    72,826.04x = 2,210,514,889.67
  5. Step 5: Solve for x
    x = 2,210,514,889.67/72,826.04
  6. Step 6: Final answer
    x = 30,353.36

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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.