Home / 71,203.40-98,260.44-40,156.18

Finding the Fourth Proportional to 71,203.40, 98,260.44 and 40,156.18

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Solution

The fourth proportional to 71,203.40, 98,260.44 and 40,156.18 is: 55,415.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,203.40 : 98,260.44 = 40,156.18 : x
  2. Step 2: Convert to fraction form
    71,203.40/98,260.44 = 40,156.18/x
  3. Step 3: Cross multiply
    71,203.40x = 98,260.44 × 40,156.18
  4. Step 4: Simplify right side
    71,203.40x = 3,945,763,519.28
  5. Step 5: Solve for x
    x = 3,945,763,519.28/71,203.40
  6. Step 6: Final answer
    x = 55,415.38

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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.