Home / 55,292.39-76,303.46-31,419.08

Finding the Fourth Proportional to 55,292.39, 76,303.46 and 31,419.08

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Solution

The fourth proportional to 55,292.39, 76,303.46 and 31,419.08 is: 43,358.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,292.39 : 76,303.46 = 31,419.08 : x
  2. Step 2: Convert to fraction form
    55,292.39/76,303.46 = 31,419.08/x
  3. Step 3: Cross multiply
    55,292.39x = 76,303.46 × 31,419.08
  4. Step 4: Simplify right side
    55,292.39x = 2,397,383,975.40
  5. Step 5: Solve for x
    x = 2,397,383,975.40/55,292.39
  6. Step 6: Final answer
    x = 43,358.30

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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.