Home / 51,012.64-70,396.95-28,351.72

Finding the Fourth Proportional to 51,012.64, 70,396.95 and 28,351.72

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Solution

The fourth proportional to 51,012.64, 70,396.95 and 28,351.72 is: 39,125.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,012.64 : 70,396.95 = 28,351.72 : x
  2. Step 2: Convert to fraction form
    51,012.64/70,396.95 = 28,351.72/x
  3. Step 3: Cross multiply
    51,012.64x = 70,396.95 × 28,351.72
  4. Step 4: Simplify right side
    51,012.64x = 1,995,874,615.25
  5. Step 5: Solve for x
    x = 1,995,874,615.25/51,012.64
  6. Step 6: Final answer
    x = 39,125.10

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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.