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Finding the Fourth Proportional to 66,675.60, 100,232.10 and 47,089.80

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Solution

The fourth proportional to 66,675.60, 100,232.10 and 47,089.80 is: 70,789.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,675.60 : 100,232.10 = 47,089.80 : x
  2. Step 2: Convert to fraction form
    66,675.60/100,232.10 = 47,089.80/x
  3. Step 3: Cross multiply
    66,675.60x = 100,232.10 × 47,089.80
  4. Step 4: Simplify right side
    66,675.60x = 4,719,909,542.58
  5. Step 5: Solve for x
    x = 4,719,909,542.58/66,675.60
  6. Step 6: Final answer
    x = 70,789.16

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1.5x scale

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.