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Finding the Fourth Proportional to 70,907.40, 106,220.70 and 45,964.80

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Solution

The fourth proportional to 70,907.40, 106,220.70 and 45,964.80 is: 68,856.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,907.40 : 106,220.70 = 45,964.80 : x
  2. Step 2: Convert to fraction form
    70,907.40/106,220.70 = 45,964.80/x
  3. Step 3: Cross multiply
    70,907.40x = 106,220.70 × 45,964.80
  4. Step 4: Simplify right side
    70,907.40x = 4,882,413,231.36
  5. Step 5: Solve for x
    x = 4,882,413,231.36/70,907.40
  6. Step 6: Final answer
    x = 68,856.19

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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.