Home / 88,511.04-122,131.53-50,778

Finding the Fourth Proportional to 88,511.04, 122,131.53 and 50,778

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Solution

The fourth proportional to 88,511.04, 122,131.53 and 50,778 is: 70,065.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,511.04 : 122,131.53 = 50,778 : x
  2. Step 2: Convert to fraction form
    88,511.04/122,131.53 = 50,778/x
  3. Step 3: Cross multiply
    88,511.04x = 122,131.53 × 50,778
  4. Step 4: Simplify right side
    88,511.04x = 6,201,594,830.34
  5. Step 5: Solve for x
    x = 6,201,594,830.34/88,511.04
  6. Step 6: Final answer
    x = 70,065.78

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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.