Home / 64,576.32-89,155.08-51,201.60

Finding the Fourth Proportional to 64,576.32, 89,155.08 and 51,201.60

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Solution

The fourth proportional to 64,576.32, 89,155.08 and 51,201.60 is: 70,689.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,576.32 : 89,155.08 = 51,201.60 : x
  2. Step 2: Convert to fraction form
    64,576.32/89,155.08 = 51,201.60/x
  3. Step 3: Cross multiply
    64,576.32x = 89,155.08 × 51,201.60
  4. Step 4: Simplify right side
    64,576.32x = 4,564,882,744.13
  5. Step 5: Solve for x
    x = 4,564,882,744.13/64,576.32
  6. Step 6: Final answer
    x = 70,689.73

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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.