Home / 50,829.75-70,147.44-30,686.18

Finding the Fourth Proportional to 50,829.75, 70,147.44 and 30,686.18

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Solution

The fourth proportional to 50,829.75, 70,147.44 and 30,686.18 is: 42,348.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,829.75 : 70,147.44 = 30,686.18 : x
  2. Step 2: Convert to fraction form
    50,829.75/70,147.44 = 30,686.18/x
  3. Step 3: Cross multiply
    50,829.75x = 70,147.44 × 30,686.18
  4. Step 4: Simplify right side
    50,829.75x = 2,152,556,619.64
  5. Step 5: Solve for x
    x = 2,152,556,619.64/50,829.75
  6. Step 6: Final answer
    x = 42,348.36

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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.