Home / 39,078.87-53,920.53-23,168.45

Finding the Fourth Proportional to 39,078.87, 53,920.53 and 23,168.45

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Solution

The fourth proportional to 39,078.87, 53,920.53 and 23,168.45 is: 31,967.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,078.87 : 53,920.53 = 23,168.45 : x
  2. Step 2: Convert to fraction form
    39,078.87/53,920.53 = 23,168.45/x
  3. Step 3: Cross multiply
    39,078.87x = 53,920.53 × 23,168.45
  4. Step 4: Simplify right side
    39,078.87x = 1,249,254,833.68
  5. Step 5: Solve for x
    x = 1,249,254,833.68/39,078.87
  6. Step 6: Final answer
    x = 31,967.53

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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.