Home / 66,619.80-99,735.30-59,621.40

Finding the Fourth Proportional to 66,619.80, 99,735.30 and 59,621.40

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Solution

The fourth proportional to 66,619.80, 99,735.30 and 59,621.40 is: 89,258.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,619.80 : 99,735.30 = 59,621.40 : x
  2. Step 2: Convert to fraction form
    66,619.80/99,735.30 = 59,621.40/x
  3. Step 3: Cross multiply
    66,619.80x = 99,735.30 × 59,621.40
  4. Step 4: Simplify right side
    66,619.80x = 5,946,358,215.42
  5. Step 5: Solve for x
    x = 5,946,358,215.42/66,619.80
  6. Step 6: Final answer
    x = 89,258.12

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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.