Home / 39,975.51-55,399.53-39,411.75

Finding the Fourth Proportional to 39,975.51, 55,399.53 and 39,411.75

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Solution

The fourth proportional to 39,975.51, 55,399.53 and 39,411.75 is: 54,618.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,975.51 : 55,399.53 = 39,411.75 : x
  2. Step 2: Convert to fraction form
    39,975.51/55,399.53 = 39,411.75/x
  3. Step 3: Cross multiply
    39,975.51x = 55,399.53 × 39,411.75
  4. Step 4: Simplify right side
    39,975.51x = 2,183,392,426.48
  5. Step 5: Solve for x
    x = 2,183,392,426.48/39,975.51
  6. Step 6: Final answer
    x = 54,618.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.