Home / 50,990.40-70,355.25-30,846.78

Finding the Fourth Proportional to 50,990.40, 70,355.25 and 30,846.78

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Solution

The fourth proportional to 50,990.40, 70,355.25 and 30,846.78 is: 42,561.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,990.40 : 70,355.25 = 30,846.78 : x
  2. Step 2: Convert to fraction form
    50,990.40/70,355.25 = 30,846.78/x
  3. Step 3: Cross multiply
    50,990.40x = 70,355.25 × 30,846.78
  4. Step 4: Simplify right side
    50,990.40x = 2,170,232,918.60
  5. Step 5: Solve for x
    x = 2,170,232,918.60/50,990.40
  6. Step 6: Final answer
    x = 42,561.60

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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.