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Finding the Fourth Proportional to 87,802.82, 121,168.11 and 47,516.88

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Solution

The fourth proportional to 87,802.82, 121,168.11 and 47,516.88 is: 65,573.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,802.82 : 121,168.11 = 47,516.88 : x
  2. Step 2: Convert to fraction form
    87,802.82/121,168.11 = 47,516.88/x
  3. Step 3: Cross multiply
    87,802.82x = 121,168.11 × 47,516.88
  4. Step 4: Simplify right side
    87,802.82x = 5,757,529,841.08
  5. Step 5: Solve for x
    x = 5,757,529,841.08/87,802.82
  6. Step 6: Final answer
    x = 65,573.40

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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.