Home / 55,889.25-77,127.06-30,738.75

Finding the Fourth Proportional to 55,889.25, 77,127.06 and 30,738.75

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Solution

The fourth proportional to 55,889.25, 77,127.06 and 30,738.75 is: 42,419.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,889.25 : 77,127.06 = 30,738.75 : x
  2. Step 2: Convert to fraction form
    55,889.25/77,127.06 = 30,738.75/x
  3. Step 3: Cross multiply
    55,889.25x = 77,127.06 × 30,738.75
  4. Step 4: Simplify right side
    55,889.25x = 2,370,789,415.58
  5. Step 5: Solve for x
    x = 2,370,789,415.58/55,889.25
  6. Step 6: Final answer
    x = 42,419.42

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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.