Home / 55,019.72-82,529.66-19,959.40

Finding the Fourth Proportional to 55,019.72, 82,529.66 and 19,959.40

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Solution

The fourth proportional to 55,019.72, 82,529.66 and 19,959.40 is: 29,939.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,019.72 : 82,529.66 = 19,959.40 : x
  2. Step 2: Convert to fraction form
    55,019.72/82,529.66 = 19,959.40/x
  3. Step 3: Cross multiply
    55,019.72x = 82,529.66 × 19,959.40
  4. Step 4: Simplify right side
    55,019.72x = 1,647,242,495.80
  5. Step 5: Solve for x
    x = 1,647,242,495.80/55,019.72
  6. Step 6: Final answer
    x = 29,939.13

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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.