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Finding the Fourth Proportional to 66,357.60, 99,244.80 and 50,611.20

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Solution

The fourth proportional to 66,357.60, 99,244.80 and 50,611.20 is: 75,694.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,357.60 : 99,244.80 = 50,611.20 : x
  2. Step 2: Convert to fraction form
    66,357.60/99,244.80 = 50,611.20/x
  3. Step 3: Cross multiply
    66,357.60x = 99,244.80 × 50,611.20
  4. Step 4: Simplify right side
    66,357.60x = 5,022,898,421.76
  5. Step 5: Solve for x
    x = 5,022,898,421.76/66,357.60
  6. Step 6: Final answer
    x = 75,694.40

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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.