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Finding the Fourth Proportional to 65,171.75, 89,938.40 and 36,877.43

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Solution

The fourth proportional to 65,171.75, 89,938.40 and 36,877.43 is: 50,891.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,171.75 : 89,938.40 = 36,877.43 : x
  2. Step 2: Convert to fraction form
    65,171.75/89,938.40 = 36,877.43/x
  3. Step 3: Cross multiply
    65,171.75x = 89,938.40 × 36,877.43
  4. Step 4: Simplify right side
    65,171.75x = 3,316,697,090.77
  5. Step 5: Solve for x
    x = 3,316,697,090.77/65,171.75
  6. Step 6: Final answer
    x = 50,891.64

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1.5x scale

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.