Home / 55,716.47-83,586.99-20,656.11

Finding the Fourth Proportional to 55,716.47, 83,586.99 and 20,656.11

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Solution

The fourth proportional to 55,716.47, 83,586.99 and 20,656.11 is: 30,988.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,716.47 : 83,586.99 = 20,656.11 : x
  2. Step 2: Convert to fraction form
    55,716.47/83,586.99 = 20,656.11/x
  3. Step 3: Cross multiply
    55,716.47x = 83,586.99 × 20,656.11
  4. Step 4: Simplify right side
    55,716.47x = 1,726,582,060.01
  5. Step 5: Solve for x
    x = 1,726,582,060.01/55,716.47
  6. Step 6: Final answer
    x = 30,988.72

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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.