Home / 68,613.44-94,665.12-40,320.32

Finding the Fourth Proportional to 68,613.44, 94,665.12 and 40,320.32

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Solution

The fourth proportional to 68,613.44, 94,665.12 and 40,320.32 is: 55,629.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,613.44 : 94,665.12 = 40,320.32 : x
  2. Step 2: Convert to fraction form
    68,613.44/94,665.12 = 40,320.32/x
  3. Step 3: Cross multiply
    68,613.44x = 94,665.12 × 40,320.32
  4. Step 4: Simplify right side
    68,613.44x = 3,816,927,931.24
  5. Step 5: Solve for x
    x = 3,816,927,931.24/68,613.44
  6. Step 6: Final answer
    x = 55,629.45

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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.