Home / 55,282.97-76,290.53-31,409.70

Finding the Fourth Proportional to 55,282.97, 76,290.53 and 31,409.70

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Solution

The fourth proportional to 55,282.97, 76,290.53 and 31,409.70 is: 43,345.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,282.97 : 76,290.53 = 31,409.70 : x
  2. Step 2: Convert to fraction form
    55,282.97/76,290.53 = 31,409.70/x
  3. Step 3: Cross multiply
    55,282.97x = 76,290.53 × 31,409.70
  4. Step 4: Simplify right side
    55,282.97x = 2,396,262,503.09
  5. Step 5: Solve for x
    x = 2,396,262,503.09/55,282.97
  6. Step 6: Final answer
    x = 43,345.40

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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.