Home / 55,455.64-76,529.82-30,306.04

Finding the Fourth Proportional to 55,455.64, 76,529.82 and 30,306.04

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Solution

The fourth proportional to 55,455.64, 76,529.82 and 30,306.04 is: 41,822.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,455.64 : 76,529.82 = 30,306.04 : x
  2. Step 2: Convert to fraction form
    55,455.64/76,529.82 = 30,306.04/x
  3. Step 3: Cross multiply
    55,455.64x = 76,529.82 × 30,306.04
  4. Step 4: Simplify right side
    55,455.64x = 2,319,315,786.11
  5. Step 5: Solve for x
    x = 2,319,315,786.11/55,455.64
  6. Step 6: Final answer
    x = 41,822.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.