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Finding the Fourth Proportional to 68,326.94, 94,335.04 and 42,868.18

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Solution

The fourth proportional to 68,326.94, 94,335.04 and 42,868.18 is: 59,185.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,326.94 : 94,335.04 = 42,868.18 : x
  2. Step 2: Convert to fraction form
    68,326.94/94,335.04 = 42,868.18/x
  3. Step 3: Cross multiply
    68,326.94x = 94,335.04 × 42,868.18
  4. Step 4: Simplify right side
    68,326.94x = 4,043,971,475.03
  5. Step 5: Solve for x
    x = 4,043,971,475.03/68,326.94
  6. Step 6: Final answer
    x = 59,185.61

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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.