Home / 93,128.28-128,516.36-50,686.80

Finding the Fourth Proportional to 93,128.28, 128,516.36 and 50,686.80

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Solution

The fourth proportional to 93,128.28, 128,516.36 and 50,686.80 is: 69,947.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,128.28 : 128,516.36 = 50,686.80 : x
  2. Step 2: Convert to fraction form
    93,128.28/128,516.36 = 50,686.80/x
  3. Step 3: Cross multiply
    93,128.28x = 128,516.36 × 50,686.80
  4. Step 4: Simplify right side
    93,128.28x = 6,514,083,036.05
  5. Step 5: Solve for x
    x = 6,514,083,036.05/93,128.28
  6. Step 6: Final answer
    x = 69,947.42

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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.