Home / 66,068.20-99,102.30-39,824.20

Finding the Fourth Proportional to 66,068.20, 99,102.30 and 39,824.20

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Solution

The fourth proportional to 66,068.20, 99,102.30 and 39,824.20 is: 59,736.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,068.20 : 99,102.30 = 39,824.20 : x
  2. Step 2: Convert to fraction form
    66,068.20/99,102.30 = 39,824.20/x
  3. Step 3: Cross multiply
    66,068.20x = 99,102.30 × 39,824.20
  4. Step 4: Simplify right side
    66,068.20x = 3,946,669,815.66
  5. Step 5: Solve for x
    x = 3,946,669,815.66/66,068.20
  6. Step 6: Final answer
    x = 59,736.30

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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.