Home / 70,840.31-106,137.74-49,740.21

Finding the Fourth Proportional to 70,840.31, 106,137.74 and 49,740.21

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Solution

The fourth proportional to 70,840.31, 106,137.74 and 49,740.21 is: 74,524.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,840.31 : 106,137.74 = 49,740.21 : x
  2. Step 2: Convert to fraction form
    70,840.31/106,137.74 = 49,740.21/x
  3. Step 3: Cross multiply
    70,840.31x = 106,137.74 × 49,740.21
  4. Step 4: Simplify right side
    70,840.31x = 5,279,313,600.88
  5. Step 5: Solve for x
    x = 5,279,313,600.88/70,840.31
  6. Step 6: Final answer
    x = 74,524.15

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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.