Home / 55,208.80-82,910.40-53,459.20

Finding the Fourth Proportional to 55,208.80, 82,910.40 and 53,459.20

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Solution

The fourth proportional to 55,208.80, 82,910.40 and 53,459.20 is: 80,282.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,208.80 : 82,910.40 = 53,459.20 : x
  2. Step 2: Convert to fraction form
    55,208.80/82,910.40 = 53,459.20/x
  3. Step 3: Cross multiply
    55,208.80x = 82,910.40 × 53,459.20
  4. Step 4: Simplify right side
    55,208.80x = 4,432,323,655.68
  5. Step 5: Solve for x
    x = 4,432,323,655.68/55,208.80
  6. Step 6: Final answer
    x = 80,282.92

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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.