Home / 78,730.94-108,666.21-50,044.99

Finding the Fourth Proportional to 78,730.94, 108,666.21 and 50,044.99

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Solution

The fourth proportional to 78,730.94, 108,666.21 and 50,044.99 is: 69,073.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,730.94 : 108,666.21 = 50,044.99 : x
  2. Step 2: Convert to fraction form
    78,730.94/108,666.21 = 50,044.99/x
  3. Step 3: Cross multiply
    78,730.94x = 108,666.21 × 50,044.99
  4. Step 4: Simplify right side
    78,730.94x = 5,438,199,231.04
  5. Step 5: Solve for x
    x = 5,438,199,231.04/78,730.94
  6. Step 6: Final answer
    x = 69,073.22

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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.