Home / 55,403.85-83,132.78-25,806.45

Finding the Fourth Proportional to 55,403.85, 83,132.78 and 25,806.45

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Solution

The fourth proportional to 55,403.85, 83,132.78 and 25,806.45 is: 38,722.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,403.85 : 83,132.78 = 25,806.45 : x
  2. Step 2: Convert to fraction form
    55,403.85/83,132.78 = 25,806.45/x
  3. Step 3: Cross multiply
    55,403.85x = 83,132.78 × 25,806.45
  4. Step 4: Simplify right side
    55,403.85x = 2,145,361,801.40
  5. Step 5: Solve for x
    x = 2,145,361,801.40/55,403.85
  6. Step 6: Final answer
    x = 38,722.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.