Home / 93,128.32-128,517.07-50,687.16

Finding the Fourth Proportional to 93,128.32, 128,517.07 and 50,687.16

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Solution

The fourth proportional to 93,128.32, 128,517.07 and 50,687.16 is: 69,948.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,128.32 : 128,517.07 = 50,687.16 : x
  2. Step 2: Convert to fraction form
    93,128.32/128,517.07 = 50,687.16/x
  3. Step 3: Cross multiply
    93,128.32x = 128,517.07 × 50,687.16
  4. Step 4: Simplify right side
    93,128.32x = 6,514,165,289.82
  5. Step 5: Solve for x
    x = 6,514,165,289.82/93,128.32
  6. Step 6: Final answer
    x = 69,948.27

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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.