Home / 70,840.46-106,235.89-20,907.34

Finding the Fourth Proportional to 70,840.46, 106,235.89 and 20,907.34

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Solution

The fourth proportional to 70,840.46, 106,235.89 and 20,907.34 is: 31,353.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,840.46 : 106,235.89 = 20,907.34 : x
  2. Step 2: Convert to fraction form
    70,840.46/106,235.89 = 20,907.34/x
  3. Step 3: Cross multiply
    70,840.46x = 106,235.89 × 20,907.34
  4. Step 4: Simplify right side
    70,840.46x = 2,221,109,554.57
  5. Step 5: Solve for x
    x = 2,221,109,554.57/70,840.46
  6. Step 6: Final answer
    x = 31,353.69

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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.