Home / 104,790.47-144,611.53-57,043.81

Finding the Fourth Proportional to 104,790.47, 144,611.53 and 57,043.81

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Solution

The fourth proportional to 104,790.47, 144,611.53 and 57,043.81 is: 78,720.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,790.47 : 144,611.53 = 57,043.81 : x
  2. Step 2: Convert to fraction form
    104,790.47/144,611.53 = 57,043.81/x
  3. Step 3: Cross multiply
    104,790.47x = 144,611.53 × 57,043.81
  4. Step 4: Simplify right side
    104,790.47x = 8,249,192,136.99
  5. Step 5: Solve for x
    x = 8,249,192,136.99/104,790.47
  6. Step 6: Final answer
    x = 78,720.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.