Home / 51,339.38-70,849.86-28,679.33

Finding the Fourth Proportional to 51,339.38, 70,849.86 and 28,679.33

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Solution

The fourth proportional to 51,339.38, 70,849.86 and 28,679.33 is: 39,578.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,339.38 : 70,849.86 = 28,679.33 : x
  2. Step 2: Convert to fraction form
    51,339.38/70,849.86 = 28,679.33/x
  3. Step 3: Cross multiply
    51,339.38x = 70,849.86 × 28,679.33
  4. Step 4: Simplify right side
    51,339.38x = 2,031,926,515.39
  5. Step 5: Solve for x
    x = 2,031,926,515.39/51,339.38
  6. Step 6: Final answer
    x = 39,578.32

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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.