Home / 55,329.12-76,353.12-30,178.80

Finding the Fourth Proportional to 55,329.12, 76,353.12 and 30,178.80

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Solution

The fourth proportional to 55,329.12, 76,353.12 and 30,178.80 is: 41,646.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,329.12 : 76,353.12 = 30,178.80 : x
  2. Step 2: Convert to fraction form
    55,329.12/76,353.12 = 30,178.80/x
  3. Step 3: Cross multiply
    55,329.12x = 76,353.12 × 30,178.80
  4. Step 4: Simplify right side
    55,329.12x = 2,304,245,537.86
  5. Step 5: Solve for x
    x = 2,304,245,537.86/55,329.12
  6. Step 6: Final answer
    x = 41,646.16

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1.5x scale

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.