Home / 70,450.84-105,659.48-28,331.02

Finding the Fourth Proportional to 70,450.84, 105,659.48 and 28,331.02

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Solution

The fourth proportional to 70,450.84, 105,659.48 and 28,331.02 is: 42,489.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,450.84 : 105,659.48 = 28,331.02 : x
  2. Step 2: Convert to fraction form
    70,450.84/105,659.48 = 28,331.02/x
  3. Step 3: Cross multiply
    70,450.84x = 105,659.48 × 28,331.02
  4. Step 4: Simplify right side
    70,450.84x = 2,993,440,841.07
  5. Step 5: Solve for x
    x = 2,993,440,841.07/70,450.84
  6. Step 6: Final answer
    x = 42,489.78

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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.