Home / 51,777.36-77,673.60-20,181.60

Finding the Fourth Proportional to 51,777.36, 77,673.60 and 20,181.60

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Solution

The fourth proportional to 51,777.36, 77,673.60 and 20,181.60 is: 30,275.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,777.36 : 77,673.60 = 20,181.60 : x
  2. Step 2: Convert to fraction form
    51,777.36/77,673.60 = 20,181.60/x
  3. Step 3: Cross multiply
    51,777.36x = 77,673.60 × 20,181.60
  4. Step 4: Simplify right side
    51,777.36x = 1,567,577,525.76
  5. Step 5: Solve for x
    x = 1,567,577,525.76/51,777.36
  6. Step 6: Final answer
    x = 30,275.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.