Home / 74,682.30-111,839-55,661.34

Finding the Fourth Proportional to 74,682.30, 111,839 and 55,661.34

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Solution

The fourth proportional to 74,682.30, 111,839 and 55,661.34 is: 83,354.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,682.30 : 111,839 = 55,661.34 : x
  2. Step 2: Convert to fraction form
    74,682.30/111,839 = 55,661.34/x
  3. Step 3: Cross multiply
    74,682.30x = 111,839 × 55,661.34
  4. Step 4: Simplify right side
    74,682.30x = 6,225,108,604.26
  5. Step 5: Solve for x
    x = 6,225,108,604.26/74,682.30
  6. Step 6: Final answer
    x = 83,354.54

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1.5x scale

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.