Home / 65,453.06-90,333.70-39,954.08

Finding the Fourth Proportional to 65,453.06, 90,333.70 and 39,954.08

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Solution

The fourth proportional to 65,453.06, 90,333.70 and 39,954.08 is: 55,141.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,453.06 : 90,333.70 = 39,954.08 : x
  2. Step 2: Convert to fraction form
    65,453.06/90,333.70 = 39,954.08/x
  3. Step 3: Cross multiply
    65,453.06x = 90,333.70 × 39,954.08
  4. Step 4: Simplify right side
    65,453.06x = 3,609,200,002.45
  5. Step 5: Solve for x
    x = 3,609,200,002.45/65,453.06
  6. Step 6: Final answer
    x = 55,141.80

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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.