Home / 70,208.16-105,219.09-30,722.28

Finding the Fourth Proportional to 70,208.16, 105,219.09 and 30,722.28

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Solution

The fourth proportional to 70,208.16, 105,219.09 and 30,722.28 is: 46,042.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,208.16 : 105,219.09 = 30,722.28 : x
  2. Step 2: Convert to fraction form
    70,208.16/105,219.09 = 30,722.28/x
  3. Step 3: Cross multiply
    70,208.16x = 105,219.09 × 30,722.28
  4. Step 4: Simplify right side
    70,208.16x = 3,232,570,344.33
  5. Step 5: Solve for x
    x = 3,232,570,344.33/70,208.16
  6. Step 6: Final answer
    x = 46,042.66

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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.