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Finding the Fourth Proportional to 66,734.40, 100,101.60 and 60,392.10

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Solution

The fourth proportional to 66,734.40, 100,101.60 and 60,392.10 is: 90,588.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,734.40 : 100,101.60 = 60,392.10 : x
  2. Step 2: Convert to fraction form
    66,734.40/100,101.60 = 60,392.10/x
  3. Step 3: Cross multiply
    66,734.40x = 100,101.60 × 60,392.10
  4. Step 4: Simplify right side
    66,734.40x = 6,045,345,837.36
  5. Step 5: Solve for x
    x = 6,045,345,837.36/66,734.40
  6. Step 6: Final answer
    x = 90,588.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.