Home / 71,247.22-98,315.74-39,415.43

Finding the Fourth Proportional to 71,247.22, 98,315.74 and 39,415.43

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Solution

The fourth proportional to 71,247.22, 98,315.74 and 39,415.43 is: 54,390.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,247.22 : 98,315.74 = 39,415.43 : x
  2. Step 2: Convert to fraction form
    71,247.22/98,315.74 = 39,415.43/x
  3. Step 3: Cross multiply
    71,247.22x = 98,315.74 × 39,415.43
  4. Step 4: Simplify right side
    71,247.22x = 3,875,157,315.12
  5. Step 5: Solve for x
    x = 3,875,157,315.12/71,247.22
  6. Step 6: Final answer
    x = 54,390.30

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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.