Home / 68,490.24-94,518.08-40,216.32

Finding the Fourth Proportional to 68,490.24, 94,518.08 and 40,216.32

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Solution

The fourth proportional to 68,490.24, 94,518.08 and 40,216.32 is: 55,499.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,490.24 : 94,518.08 = 40,216.32 : x
  2. Step 2: Convert to fraction form
    68,490.24/94,518.08 = 40,216.32/x
  3. Step 3: Cross multiply
    68,490.24x = 94,518.08 × 40,216.32
  4. Step 4: Simplify right side
    68,490.24x = 3,801,169,351.07
  5. Step 5: Solve for x
    x = 3,801,169,351.07/68,490.24
  6. Step 6: Final answer
    x = 55,499.43

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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.