Home / 51,514.84-77,272.26-28,128.52

Finding the Fourth Proportional to 51,514.84, 77,272.26 and 28,128.52

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Solution

The fourth proportional to 51,514.84, 77,272.26 and 28,128.52 is: 42,192.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,514.84 : 77,272.26 = 28,128.52 : x
  2. Step 2: Convert to fraction form
    51,514.84/77,272.26 = 28,128.52/x
  3. Step 3: Cross multiply
    51,514.84x = 77,272.26 × 28,128.52
  4. Step 4: Simplify right side
    51,514.84x = 2,173,554,310.86
  5. Step 5: Solve for x
    x = 2,173,554,310.86/51,514.84
  6. Step 6: Final answer
    x = 42,192.78

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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.