Home / 66,130.53-99,196.61-19,384.35

Finding the Fourth Proportional to 66,130.53, 99,196.61 and 19,384.35

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Solution

The fourth proportional to 66,130.53, 99,196.61 and 19,384.35 is: 29,076.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,130.53 : 99,196.61 = 19,384.35 : x
  2. Step 2: Convert to fraction form
    66,130.53/99,196.61 = 19,384.35/x
  3. Step 3: Cross multiply
    66,130.53x = 99,196.61 × 19,384.35
  4. Step 4: Simplify right side
    66,130.53x = 1,922,861,710.13
  5. Step 5: Solve for x
    x = 1,922,861,710.13/66,130.53
  6. Step 6: Final answer
    x = 29,076.76

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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.