Home / 71,246.84-98,315.22-39,415.06

Finding the Fourth Proportional to 71,246.84, 98,315.22 and 39,415.06

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Solution

The fourth proportional to 71,246.84, 98,315.22 and 39,415.06 is: 54,389.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,246.84 : 98,315.22 = 39,415.06 : x
  2. Step 2: Convert to fraction form
    71,246.84/98,315.22 = 39,415.06/x
  3. Step 3: Cross multiply
    71,246.84x = 98,315.22 × 39,415.06
  4. Step 4: Simplify right side
    71,246.84x = 3,875,100,049.43
  5. Step 5: Solve for x
    x = 3,875,100,049.43/71,246.84
  6. Step 6: Final answer
    x = 54,389.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.