Home / 99,362.75-149,021.73-28,283.81

Finding the Fourth Proportional to 99,362.75, 149,021.73 and 28,283.81

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Solution

The fourth proportional to 99,362.75, 149,021.73 and 28,283.81 is: 42,419.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,362.75 : 149,021.73 = 28,283.81 : x
  2. Step 2: Convert to fraction form
    99,362.75/149,021.73 = 28,283.81/x
  3. Step 3: Cross multiply
    99,362.75x = 149,021.73 × 28,283.81
  4. Step 4: Simplify right side
    99,362.75x = 4,214,902,560.12
  5. Step 5: Solve for x
    x = 4,214,902,560.12/99,362.75
  6. Step 6: Final answer
    x = 42,419.34

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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.