Home / 64,785.12-97,192.44-20,411.64

Finding the Fourth Proportional to 64,785.12, 97,192.44 and 20,411.64

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Solution

The fourth proportional to 64,785.12, 97,192.44 and 20,411.64 is: 30,622.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,785.12 : 97,192.44 = 20,411.64 : x
  2. Step 2: Convert to fraction form
    64,785.12/97,192.44 = 20,411.64/x
  3. Step 3: Cross multiply
    64,785.12x = 97,192.44 × 20,411.64
  4. Step 4: Simplify right side
    64,785.12x = 1,983,857,096.00
  5. Step 5: Solve for x
    x = 1,983,857,096.00/64,785.12
  6. Step 6: Final answer
    x = 30,622.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.