Home / 51,031.08-70,414.38-28,369.44

Finding the Fourth Proportional to 51,031.08, 70,414.38 and 28,369.44

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Solution

The fourth proportional to 51,031.08, 70,414.38 and 28,369.44 is: 39,145.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,031.08 : 70,414.38 = 28,369.44 : x
  2. Step 2: Convert to fraction form
    51,031.08/70,414.38 = 28,369.44/x
  3. Step 3: Cross multiply
    51,031.08x = 70,414.38 × 28,369.44
  4. Step 4: Simplify right side
    51,031.08x = 1,997,616,528.55
  5. Step 5: Solve for x
    x = 1,997,616,528.55/51,031.08
  6. Step 6: Final answer
    x = 39,145.10

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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.