Home / 54,918.24-75,720-46,405.20

Finding the Fourth Proportional to 54,918.24, 75,720 and 46,405.20

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Solution

The fourth proportional to 54,918.24, 75,720 and 46,405.20 is: 63,982.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,918.24 : 75,720 = 46,405.20 : x
  2. Step 2: Convert to fraction form
    54,918.24/75,720 = 46,405.20/x
  3. Step 3: Cross multiply
    54,918.24x = 75,720 × 46,405.20
  4. Step 4: Simplify right side
    54,918.24x = 3,513,801,744
  5. Step 5: Solve for x
    x = 3,513,801,744/54,918.24
  6. Step 6: Final answer
    x = 63,982.42

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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.