Home / 55,415.02-83,121.99-13,862.02

Finding the Fourth Proportional to 55,415.02, 83,121.99 and 13,862.02

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Solution

The fourth proportional to 55,415.02, 83,121.99 and 13,862.02 is: 20,792.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,415.02 : 83,121.99 = 13,862.02 : x
  2. Step 2: Convert to fraction form
    55,415.02/83,121.99 = 13,862.02/x
  3. Step 3: Cross multiply
    55,415.02x = 83,121.99 × 13,862.02
  4. Step 4: Simplify right side
    55,415.02x = 1,152,238,687.82
  5. Step 5: Solve for x
    x = 1,152,238,687.82/55,415.02
  6. Step 6: Final answer
    x = 20,792.89

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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.