Home / 51,219.99-70,678.41-28,556.85

Finding the Fourth Proportional to 51,219.99, 70,678.41 and 28,556.85

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Solution

The fourth proportional to 51,219.99, 70,678.41 and 28,556.85 is: 39,405.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,219.99 : 70,678.41 = 28,556.85 : x
  2. Step 2: Convert to fraction form
    51,219.99/70,678.41 = 28,556.85/x
  3. Step 3: Cross multiply
    51,219.99x = 70,678.41 × 28,556.85
  4. Step 4: Simplify right side
    51,219.99x = 2,018,352,752.61
  5. Step 5: Solve for x
    x = 2,018,352,752.61/51,219.99
  6. Step 6: Final answer
    x = 39,405.57

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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.