Home / 70,122.24-105,192-28,563.84

Finding the Fourth Proportional to 70,122.24, 105,192 and 28,563.84

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Solution

The fourth proportional to 70,122.24, 105,192 and 28,563.84 is: 42,849.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,122.24 : 105,192 = 28,563.84 : x
  2. Step 2: Convert to fraction form
    70,122.24/105,192 = 28,563.84/x
  3. Step 3: Cross multiply
    70,122.24x = 105,192 × 28,563.84
  4. Step 4: Simplify right side
    70,122.24x = 3,004,687,457.28
  5. Step 5: Solve for x
    x = 3,004,687,457.28/70,122.24
  6. Step 6: Final answer
    x = 42,849.28

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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.