Home / 35,640.79-53,438.63-30,355.09

Finding the Fourth Proportional to 35,640.79, 53,438.63 and 30,355.09

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Solution

The fourth proportional to 35,640.79, 53,438.63 and 30,355.09 is: 45,513.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,640.79 : 53,438.63 = 30,355.09 : x
  2. Step 2: Convert to fraction form
    35,640.79/53,438.63 = 30,355.09/x
  3. Step 3: Cross multiply
    35,640.79x = 53,438.63 × 30,355.09
  4. Step 4: Simplify right side
    35,640.79x = 1,622,134,137.75
  5. Step 5: Solve for x
    x = 1,622,134,137.75/35,640.79
  6. Step 6: Final answer
    x = 45,513.42

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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.