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Finding the Fourth Proportional to 68,323.95, 94,330.89 and 42,865.20

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Solution

The fourth proportional to 68,323.95, 94,330.89 and 42,865.20 is: 59,181.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,323.95 : 94,330.89 = 42,865.20 : x
  2. Step 2: Convert to fraction form
    68,323.95/94,330.89 = 42,865.20/x
  3. Step 3: Cross multiply
    68,323.95x = 94,330.89 × 42,865.20
  4. Step 4: Simplify right side
    68,323.95x = 4,043,512,466.03
  5. Step 5: Solve for x
    x = 4,043,512,466.03/68,323.95
  6. Step 6: Final answer
    x = 59,181.48

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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.