Home / 86,678.28-119,616-46,934.28

Finding the Fourth Proportional to 86,678.28, 119,616 and 46,934.28

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Solution

The fourth proportional to 86,678.28, 119,616 and 46,934.28 is: 64,769.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,678.28 : 119,616 = 46,934.28 : x
  2. Step 2: Convert to fraction form
    86,678.28/119,616 = 46,934.28/x
  3. Step 3: Cross multiply
    86,678.28x = 119,616 × 46,934.28
  4. Step 4: Simplify right side
    86,678.28x = 5,614,090,836.48
  5. Step 5: Solve for x
    x = 5,614,090,836.48/86,678.28
  6. Step 6: Final answer
    x = 64,769.29

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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.