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Finding the Fourth Proportional to 65,213.22, 89,992.89 and 35,405.22

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Solution

The fourth proportional to 65,213.22, 89,992.89 and 35,405.22 is: 48,858.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,213.22 : 89,992.89 = 35,405.22 : x
  2. Step 2: Convert to fraction form
    65,213.22/89,992.89 = 35,405.22/x
  3. Step 3: Cross multiply
    65,213.22x = 89,992.89 × 35,405.22
  4. Step 4: Simplify right side
    65,213.22x = 3,186,218,068.89
  5. Step 5: Solve for x
    x = 3,186,218,068.89/65,213.22
  6. Step 6: Final answer
    x = 48,858.47

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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.