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Finding the Fourth Proportional to 88,308, 121,865.04 and 50,581.44

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Solution

The fourth proportional to 88,308, 121,865.04 and 50,581.44 is: 69,802.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,308 : 121,865.04 = 50,581.44 : x
  2. Step 2: Convert to fraction form
    88,308/121,865.04 = 50,581.44/x
  3. Step 3: Cross multiply
    88,308x = 121,865.04 × 50,581.44
  4. Step 4: Simplify right side
    88,308x = 6,164,109,208.86
  5. Step 5: Solve for x
    x = 6,164,109,208.86/88,308
  6. Step 6: Final answer
    x = 69,802.39

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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.