Home / 64,868.56-89,498.19-51,213.58

Finding the Fourth Proportional to 64,868.56, 89,498.19 and 51,213.58

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Solution

The fourth proportional to 64,868.56, 89,498.19 and 51,213.58 is: 70,658.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,868.56 : 89,498.19 = 51,213.58 : x
  2. Step 2: Convert to fraction form
    64,868.56/89,498.19 = 51,213.58/x
  3. Step 3: Cross multiply
    64,868.56x = 89,498.19 × 51,213.58
  4. Step 4: Simplify right side
    64,868.56x = 4,583,522,713.42
  5. Step 5: Solve for x
    x = 4,583,522,713.42/64,868.56
  6. Step 6: Final answer
    x = 70,658.62

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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.