Home / 72,098.86-108,111.37-38,384.03

Finding the Fourth Proportional to 72,098.86, 108,111.37 and 38,384.03

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Solution

The fourth proportional to 72,098.86, 108,111.37 and 38,384.03 is: 57,556.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,098.86 : 108,111.37 = 38,384.03 : x
  2. Step 2: Convert to fraction form
    72,098.86/108,111.37 = 38,384.03/x
  3. Step 3: Cross multiply
    72,098.86x = 108,111.37 × 38,384.03
  4. Step 4: Simplify right side
    72,098.86x = 4,149,750,069.42
  5. Step 5: Solve for x
    x = 4,149,750,069.42/72,098.86
  6. Step 6: Final answer
    x = 57,556.39

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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.