Home / 55,277.35-76,283.03-31,405.36

Finding the Fourth Proportional to 55,277.35, 76,283.03 and 31,405.36

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Solution

The fourth proportional to 55,277.35, 76,283.03 and 31,405.36 is: 43,339.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,277.35 : 76,283.03 = 31,405.36 : x
  2. Step 2: Convert to fraction form
    55,277.35/76,283.03 = 31,405.36/x
  3. Step 3: Cross multiply
    55,277.35x = 76,283.03 × 31,405.36
  4. Step 4: Simplify right side
    55,277.35x = 2,395,696,019.04
  5. Step 5: Solve for x
    x = 2,395,696,019.04/55,277.35
  6. Step 6: Final answer
    x = 43,339.56

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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.