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Finding the Fourth Proportional to 68,104.59, 94,030.64 and 42,621.28

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Solution

The fourth proportional to 68,104.59, 94,030.64 and 42,621.28 is: 58,846.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,104.59 : 94,030.64 = 42,621.28 : x
  2. Step 2: Convert to fraction form
    68,104.59/94,030.64 = 42,621.28/x
  3. Step 3: Cross multiply
    68,104.59x = 94,030.64 × 42,621.28
  4. Step 4: Simplify right side
    68,104.59x = 4,007,706,236.02
  5. Step 5: Solve for x
    x = 4,007,706,236.02/68,104.59
  6. Step 6: Final answer
    x = 58,846.35

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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.