Home / 93,449.23-128,942.69-53,160.64

Finding the Fourth Proportional to 93,449.23, 128,942.69 and 53,160.64

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Solution

The fourth proportional to 93,449.23, 128,942.69 and 53,160.64 is: 73,351.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,449.23 : 128,942.69 = 53,160.64 : x
  2. Step 2: Convert to fraction form
    93,449.23/128,942.69 = 53,160.64/x
  3. Step 3: Cross multiply
    93,449.23x = 128,942.69 × 53,160.64
  4. Step 4: Simplify right side
    93,449.23x = 6,854,675,335.56
  5. Step 5: Solve for x
    x = 6,854,675,335.56/93,449.23
  6. Step 6: Final answer
    x = 73,351.87

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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.