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Finding the Fourth Proportional to 65,895.55, 90,936 and 35,681.23

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Solution

The fourth proportional to 65,895.55, 90,936 and 35,681.23 is: 49,240.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,895.55 : 90,936 = 35,681.23 : x
  2. Step 2: Convert to fraction form
    65,895.55/90,936 = 35,681.23/x
  3. Step 3: Cross multiply
    65,895.55x = 90,936 × 35,681.23
  4. Step 4: Simplify right side
    65,895.55x = 3,244,708,331.28
  5. Step 5: Solve for x
    x = 3,244,708,331.28/65,895.55
  6. Step 6: Final answer
    x = 49,240.17

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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.