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Finding the Fourth Proportional to 68,601.60, 94,674.60 and 38,390.40

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Solution

The fourth proportional to 68,601.60, 94,674.60 and 38,390.40 is: 52,981.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,601.60 : 94,674.60 = 38,390.40 : x
  2. Step 2: Convert to fraction form
    68,601.60/94,674.60 = 38,390.40/x
  3. Step 3: Cross multiply
    68,601.60x = 94,674.60 × 38,390.40
  4. Step 4: Simplify right side
    68,601.60x = 3,634,595,763.84
  5. Step 5: Solve for x
    x = 3,634,595,763.84/68,601.60
  6. Step 6: Final answer
    x = 52,981.21

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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.