Home / 70,457.06-105,689.30-17,867

Finding the Fourth Proportional to 70,457.06, 105,689.30 and 17,867

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Solution

The fourth proportional to 70,457.06, 105,689.30 and 17,867 is: 26,801.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,457.06 : 105,689.30 = 17,867 : x
  2. Step 2: Convert to fraction form
    70,457.06/105,689.30 = 17,867/x
  3. Step 3: Cross multiply
    70,457.06x = 105,689.30 × 17,867
  4. Step 4: Simplify right side
    70,457.06x = 1,888,350,723.10
  5. Step 5: Solve for x
    x = 1,888,350,723.10/70,457.06
  6. Step 6: Final answer
    x = 26,801.44

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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.