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Finding the Fourth Proportional to 68,410.50, 94,406.49 and 38,602.50

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Solution

The fourth proportional to 68,410.50, 94,406.49 and 38,602.50 is: 53,271.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,410.50 : 94,406.49 = 38,602.50 : x
  2. Step 2: Convert to fraction form
    68,410.50/94,406.49 = 38,602.50/x
  3. Step 3: Cross multiply
    68,410.50x = 94,406.49 × 38,602.50
  4. Step 4: Simplify right side
    68,410.50x = 3,644,326,530.23
  5. Step 5: Solve for x
    x = 3,644,326,530.23/68,410.50
  6. Step 6: Final answer
    x = 53,271.45

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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.