Home / 87,733.65-121,072.81-47,447.42

Finding the Fourth Proportional to 87,733.65, 121,072.81 and 47,447.42

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Solution

The fourth proportional to 87,733.65, 121,072.81 and 47,447.42 is: 65,477.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,733.65 : 121,072.81 = 47,447.42 : x
  2. Step 2: Convert to fraction form
    87,733.65/121,072.81 = 47,447.42/x
  3. Step 3: Cross multiply
    87,733.65x = 121,072.81 × 47,447.42
  4. Step 4: Simplify right side
    87,733.65x = 5,744,592,466.65
  5. Step 5: Solve for x
    x = 5,744,592,466.65/87,733.65
  6. Step 6: Final answer
    x = 65,477.64

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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.