Home / 82,857.54-114,386.68-64,669.20

Finding the Fourth Proportional to 82,857.54, 114,386.68 and 64,669.20

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Solution

The fourth proportional to 82,857.54, 114,386.68 and 64,669.20 is: 89,277.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,857.54 : 114,386.68 = 64,669.20 : x
  2. Step 2: Convert to fraction form
    82,857.54/114,386.68 = 64,669.20/x
  3. Step 3: Cross multiply
    82,857.54x = 114,386.68 × 64,669.20
  4. Step 4: Simplify right side
    82,857.54x = 7,397,294,924.58
  5. Step 5: Solve for x
    x = 7,397,294,924.58/82,857.54
  6. Step 6: Final answer
    x = 89,277.27

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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.