Home / 65,963.85-91,025.61-42,087.89

Finding the Fourth Proportional to 65,963.85, 91,025.61 and 42,087.89

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Solution

The fourth proportional to 65,963.85, 91,025.61 and 42,087.89 is: 58,078.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,963.85 : 91,025.61 = 42,087.89 : x
  2. Step 2: Convert to fraction form
    65,963.85/91,025.61 = 42,087.89/x
  3. Step 3: Cross multiply
    65,963.85x = 91,025.61 × 42,087.89
  4. Step 4: Simplify right side
    65,963.85x = 3,831,075,405.73
  5. Step 5: Solve for x
    x = 3,831,075,405.73/65,963.85
  6. Step 6: Final answer
    x = 58,078.41

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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.