Home / 55,277.06-76,282.59-31,405.04

Finding the Fourth Proportional to 55,277.06, 76,282.59 and 31,405.04

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Solution

The fourth proportional to 55,277.06, 76,282.59 and 31,405.04 is: 43,339.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,277.06 : 76,282.59 = 31,405.04 : x
  2. Step 2: Convert to fraction form
    55,277.06/76,282.59 = 31,405.04/x
  3. Step 3: Cross multiply
    55,277.06x = 76,282.59 × 31,405.04
  4. Step 4: Simplify right side
    55,277.06x = 2,395,657,408.84
  5. Step 5: Solve for x
    x = 2,395,657,408.84/55,277.06
  6. Step 6: Final answer
    x = 43,339.09

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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.