Home / 51,228.32-70,701.12-28,570.88

Finding the Fourth Proportional to 51,228.32, 70,701.12 and 28,570.88

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Solution

The fourth proportional to 51,228.32, 70,701.12 and 28,570.88 is: 39,431.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,228.32 : 70,701.12 = 28,570.88 : x
  2. Step 2: Convert to fraction form
    51,228.32/70,701.12 = 28,570.88/x
  3. Step 3: Cross multiply
    51,228.32x = 70,701.12 × 28,570.88
  4. Step 4: Simplify right side
    51,228.32x = 2,019,993,215.39
  5. Step 5: Solve for x
    x = 2,019,993,215.39/51,228.32
  6. Step 6: Final answer
    x = 39,431.18

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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.