Home / 72,289.48-108,419.64-39,003.34

Finding the Fourth Proportional to 72,289.48, 108,419.64 and 39,003.34

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Solution

The fourth proportional to 72,289.48, 108,419.64 and 39,003.34 is: 58,497.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,289.48 : 108,419.64 = 39,003.34 : x
  2. Step 2: Convert to fraction form
    72,289.48/108,419.64 = 39,003.34/x
  3. Step 3: Cross multiply
    72,289.48x = 108,419.64 × 39,003.34
  4. Step 4: Simplify right side
    72,289.48x = 4,228,728,081.60
  5. Step 5: Solve for x
    x = 4,228,728,081.60/72,289.48
  6. Step 6: Final answer
    x = 58,497.14

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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.