Home / 55,277.38-76,283.04-31,405.37

Finding the Fourth Proportional to 55,277.38, 76,283.04 and 31,405.37

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Solution

The fourth proportional to 55,277.38, 76,283.04 and 31,405.37 is: 43,339.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,277.38 : 76,283.04 = 31,405.37 : x
  2. Step 2: Convert to fraction form
    55,277.38/76,283.04 = 31,405.37/x
  3. Step 3: Cross multiply
    55,277.38x = 76,283.04 × 31,405.37
  4. Step 4: Simplify right side
    55,277.38x = 2,395,696,832.28
  5. Step 5: Solve for x
    x = 2,395,696,832.28/55,277.38
  6. Step 6: Final answer
    x = 43,339.55

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1.5x scale

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.