Home / 52,028.40-78,042.60-40,364.40

Finding the Fourth Proportional to 52,028.40, 78,042.60 and 40,364.40

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Solution

The fourth proportional to 52,028.40, 78,042.60 and 40,364.40 is: 60,546.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,028.40 : 78,042.60 = 40,364.40 : x
  2. Step 2: Convert to fraction form
    52,028.40/78,042.60 = 40,364.40/x
  3. Step 3: Cross multiply
    52,028.40x = 78,042.60 × 40,364.40
  4. Step 4: Simplify right side
    52,028.40x = 3,150,142,723.44
  5. Step 5: Solve for x
    x = 3,150,142,723.44/52,028.40
  6. Step 6: Final answer
    x = 60,546.60

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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.