Home / 55,329.12-76,354.04-30,178.64

Finding the Fourth Proportional to 55,329.12, 76,354.04 and 30,178.64

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Solution

The fourth proportional to 55,329.12, 76,354.04 and 30,178.64 is: 41,646.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,329.12 : 76,354.04 = 30,178.64 : x
  2. Step 2: Convert to fraction form
    55,329.12/76,354.04 = 30,178.64/x
  3. Step 3: Cross multiply
    55,329.12x = 76,354.04 × 30,178.64
  4. Step 4: Simplify right side
    55,329.12x = 2,304,261,085.71
  5. Step 5: Solve for x
    x = 2,304,261,085.71/55,329.12
  6. Step 6: Final answer
    x = 41,646.44

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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.