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Finding the Fourth Proportional to 66,038.90, 91,133.37 and 35,824.10

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Solution

The fourth proportional to 66,038.90, 91,133.37 and 35,824.10 is: 49,437.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,038.90 : 91,133.37 = 35,824.10 : x
  2. Step 2: Convert to fraction form
    66,038.90/91,133.37 = 35,824.10/x
  3. Step 3: Cross multiply
    66,038.90x = 91,133.37 × 35,824.10
  4. Step 4: Simplify right side
    66,038.90x = 3,264,770,504.55
  5. Step 5: Solve for x
    x = 3,264,770,504.55/66,038.90
  6. Step 6: Final answer
    x = 49,437.09

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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.