Home / 68,800.13-94,944.35-40,139.49

Finding the Fourth Proportional to 68,800.13, 94,944.35 and 40,139.49

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Solution

The fourth proportional to 68,800.13, 94,944.35 and 40,139.49 is: 55,392.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,800.13 : 94,944.35 = 40,139.49 : x
  2. Step 2: Convert to fraction form
    68,800.13/94,944.35 = 40,139.49/x
  3. Step 3: Cross multiply
    68,800.13x = 94,944.35 × 40,139.49
  4. Step 4: Simplify right side
    68,800.13x = 3,811,017,586.68
  5. Step 5: Solve for x
    x = 3,811,017,586.68/68,800.13
  6. Step 6: Final answer
    x = 55,392.60

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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.