Home / 78,318.36-108,107.39-46,487.25

Finding the Fourth Proportional to 78,318.36, 108,107.39 and 46,487.25

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Solution

The fourth proportional to 78,318.36, 108,107.39 and 46,487.25 is: 64,169.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,318.36 : 108,107.39 = 46,487.25 : x
  2. Step 2: Convert to fraction form
    78,318.36/108,107.39 = 46,487.25/x
  3. Step 3: Cross multiply
    78,318.36x = 108,107.39 × 46,487.25
  4. Step 4: Simplify right side
    78,318.36x = 5,025,615,382.00
  5. Step 5: Solve for x
    x = 5,025,615,382.00/78,318.36
  6. Step 6: Final answer
    x = 64,169.06

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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.