Home / 55,359.86-83,019.40-19,811.54

Finding the Fourth Proportional to 55,359.86, 83,019.40 and 19,811.54

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Solution

The fourth proportional to 55,359.86, 83,019.40 and 19,811.54 is: 29,710.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,359.86 : 83,019.40 = 19,811.54 : x
  2. Step 2: Convert to fraction form
    55,359.86/83,019.40 = 19,811.54/x
  3. Step 3: Cross multiply
    55,359.86x = 83,019.40 × 19,811.54
  4. Step 4: Simplify right side
    55,359.86x = 1,644,742,163.88
  5. Step 5: Solve for x
    x = 1,644,742,163.88/55,359.86
  6. Step 6: Final answer
    x = 29,710.01

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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.