Home / 70,246.12-105,369.26-28,693.12

Finding the Fourth Proportional to 70,246.12, 105,369.26 and 28,693.12

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Solution

The fourth proportional to 70,246.12, 105,369.26 and 28,693.12 is: 43,039.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,246.12 : 105,369.26 = 28,693.12 : x
  2. Step 2: Convert to fraction form
    70,246.12/105,369.26 = 28,693.12/x
  3. Step 3: Cross multiply
    70,246.12x = 105,369.26 × 28,693.12
  4. Step 4: Simplify right side
    70,246.12x = 3,023,372,821.49
  5. Step 5: Solve for x
    x = 3,023,372,821.49/70,246.12
  6. Step 6: Final answer
    x = 43,039.71

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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.