Home / 50,620.72-75,950.76-21,031.12

Finding the Fourth Proportional to 50,620.72, 75,950.76 and 21,031.12

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Solution

The fourth proportional to 50,620.72, 75,950.76 and 21,031.12 is: 31,554.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,620.72 : 75,950.76 = 21,031.12 : x
  2. Step 2: Convert to fraction form
    50,620.72/75,950.76 = 21,031.12/x
  3. Step 3: Cross multiply
    50,620.72x = 75,950.76 × 21,031.12
  4. Step 4: Simplify right side
    50,620.72x = 1,597,329,547.65
  5. Step 5: Solve for x
    x = 1,597,329,547.65/50,620.72
  6. Step 6: Final answer
    x = 31,554.86

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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.