Home / 68,613.56-94,690.20-40,328.36

Finding the Fourth Proportional to 68,613.56, 94,690.20 and 40,328.36

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Solution

The fourth proportional to 68,613.56, 94,690.20 and 40,328.36 is: 55,655.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,613.56 : 94,690.20 = 40,328.36 : x
  2. Step 2: Convert to fraction form
    68,613.56/94,690.20 = 40,328.36/x
  3. Step 3: Cross multiply
    68,613.56x = 94,690.20 × 40,328.36
  4. Step 4: Simplify right side
    68,613.56x = 3,818,700,474.07
  5. Step 5: Solve for x
    x = 3,818,700,474.07/68,613.56
  6. Step 6: Final answer
    x = 55,655.19

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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.