Home / 55,021-75,929.88-29,870.52

Finding the Fourth Proportional to 55,021, 75,929.88 and 29,870.52

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Solution

The fourth proportional to 55,021, 75,929.88 and 29,870.52 is: 41,221.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,021 : 75,929.88 = 29,870.52 : x
  2. Step 2: Convert to fraction form
    55,021/75,929.88 = 29,870.52/x
  3. Step 3: Cross multiply
    55,021x = 75,929.88 × 29,870.52
  4. Step 4: Simplify right side
    55,021x = 2,268,064,999.14
  5. Step 5: Solve for x
    x = 2,268,064,999.14/55,021
  6. Step 6: Final answer
    x = 41,221.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.