Home / 87,880.89-121,274.94-47,593.72

Finding the Fourth Proportional to 87,880.89, 121,274.94 and 47,593.72

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Solution

The fourth proportional to 87,880.89, 121,274.94 and 47,593.72 is: 65,678.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,880.89 : 121,274.94 = 47,593.72 : x
  2. Step 2: Convert to fraction form
    87,880.89/121,274.94 = 47,593.72/x
  3. Step 3: Cross multiply
    87,880.89x = 121,274.94 × 47,593.72
  4. Step 4: Simplify right side
    87,880.89x = 5,771,925,537.38
  5. Step 5: Solve for x
    x = 5,771,925,537.38/87,880.89
  6. Step 6: Final answer
    x = 65,678.96

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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.