Home / 55,484.46-83,218.50-20,415.96

Finding the Fourth Proportional to 55,484.46, 83,218.50 and 20,415.96

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Solution

The fourth proportional to 55,484.46, 83,218.50 and 20,415.96 is: 30,620.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,484.46 : 83,218.50 = 20,415.96 : x
  2. Step 2: Convert to fraction form
    55,484.46/83,218.50 = 20,415.96/x
  3. Step 3: Cross multiply
    55,484.46x = 83,218.50 × 20,415.96
  4. Step 4: Simplify right side
    55,484.46x = 1,698,985,567.26
  5. Step 5: Solve for x
    x = 1,698,985,567.26/55,484.46
  6. Step 6: Final answer
    x = 30,620.93

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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.