Home / 55,052.12-75,969.42-30,855.16

Finding the Fourth Proportional to 55,052.12, 75,969.42 and 30,855.16

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Solution

The fourth proportional to 55,052.12, 75,969.42 and 30,855.16 is: 42,578.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,052.12 : 75,969.42 = 30,855.16 : x
  2. Step 2: Convert to fraction form
    55,052.12/75,969.42 = 30,855.16/x
  3. Step 3: Cross multiply
    55,052.12x = 75,969.42 × 30,855.16
  4. Step 4: Simplify right side
    55,052.12x = 2,344,048,609.21
  5. Step 5: Solve for x
    x = 2,344,048,609.21/55,052.12
  6. Step 6: Final answer
    x = 42,578.72

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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.