Home / 55,414.10-76,470.90-30,263.60

Finding the Fourth Proportional to 55,414.10, 76,470.90 and 30,263.60

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Solution

The fourth proportional to 55,414.10, 76,470.90 and 30,263.60 is: 41,763.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,414.10 : 76,470.90 = 30,263.60 : x
  2. Step 2: Convert to fraction form
    55,414.10/76,470.90 = 30,263.60/x
  3. Step 3: Cross multiply
    55,414.10x = 76,470.90 × 30,263.60
  4. Step 4: Simplify right side
    55,414.10x = 2,314,284,729.24
  5. Step 5: Solve for x
    x = 2,314,284,729.24/55,414.10
  6. Step 6: Final answer
    x = 41,763.46

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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.