Home / 55,065.35-75,987.74-31,191.54

Finding the Fourth Proportional to 55,065.35, 75,987.74 and 31,191.54

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Solution

The fourth proportional to 55,065.35, 75,987.74 and 31,191.54 is: 43,042.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,065.35 : 75,987.74 = 31,191.54 : x
  2. Step 2: Convert to fraction form
    55,065.35/75,987.74 = 31,191.54/x
  3. Step 3: Cross multiply
    55,065.35x = 75,987.74 × 31,191.54
  4. Step 4: Simplify right side
    55,065.35x = 2,370,174,475.76
  5. Step 5: Solve for x
    x = 2,370,174,475.76/55,065.35
  6. Step 6: Final answer
    x = 43,042.94

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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.