Home / 55,278.14-76,284.08-31,406.12

Finding the Fourth Proportional to 55,278.14, 76,284.08 and 31,406.12

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Solution

The fourth proportional to 55,278.14, 76,284.08 and 31,406.12 is: 43,340.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,278.14 : 76,284.08 = 31,406.12 : x
  2. Step 2: Convert to fraction form
    55,278.14/76,284.08 = 31,406.12/x
  3. Step 3: Cross multiply
    55,278.14x = 76,284.08 × 31,406.12
  4. Step 4: Simplify right side
    55,278.14x = 2,395,786,667.66
  5. Step 5: Solve for x
    x = 2,395,786,667.66/55,278.14
  6. Step 6: Final answer
    x = 43,340.58

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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.