Home / 93,391.28-128,879.34-53,105.04

Finding the Fourth Proportional to 93,391.28, 128,879.34 and 53,105.04

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Solution

The fourth proportional to 93,391.28, 128,879.34 and 53,105.04 is: 73,284.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,391.28 : 128,879.34 = 53,105.04 : x
  2. Step 2: Convert to fraction form
    93,391.28/128,879.34 = 53,105.04/x
  3. Step 3: Cross multiply
    93,391.28x = 128,879.34 × 53,105.04
  4. Step 4: Simplify right side
    93,391.28x = 6,844,142,505.87
  5. Step 5: Solve for x
    x = 6,844,142,505.87/93,391.28
  6. Step 6: Final answer
    x = 73,284.60

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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.