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Finding the Fourth Proportional to 65,368.95, 90,177.75 and 41,453.97

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Solution

The fourth proportional to 65,368.95, 90,177.75 and 41,453.97 is: 57,186.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,368.95 : 90,177.75 = 41,453.97 : x
  2. Step 2: Convert to fraction form
    65,368.95/90,177.75 = 41,453.97/x
  3. Step 3: Cross multiply
    65,368.95x = 90,177.75 × 41,453.97
  4. Step 4: Simplify right side
    65,368.95x = 3,738,225,743.17
  5. Step 5: Solve for x
    x = 3,738,225,743.17/65,368.95
  6. Step 6: Final answer
    x = 57,186.57

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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.