Home / 55,915.75-77,163.74-30,765.25

Finding the Fourth Proportional to 55,915.75, 77,163.74 and 30,765.25

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Solution

The fourth proportional to 55,915.75, 77,163.74 and 30,765.25 is: 42,456.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,915.75 : 77,163.74 = 30,765.25 : x
  2. Step 2: Convert to fraction form
    55,915.75/77,163.74 = 30,765.25/x
  3. Step 3: Cross multiply
    55,915.75x = 77,163.74 × 30,765.25
  4. Step 4: Simplify right side
    55,915.75x = 2,373,961,752.04
  5. Step 5: Solve for x
    x = 2,373,961,752.04/55,915.75
  6. Step 6: Final answer
    x = 42,456.05

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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.