Home / 76,072.76-104,972.34-42,075.86

Finding the Fourth Proportional to 76,072.76, 104,972.34 and 42,075.86

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Solution

The fourth proportional to 76,072.76, 104,972.34 and 42,075.86 is: 58,060.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,072.76 : 104,972.34 = 42,075.86 : x
  2. Step 2: Convert to fraction form
    76,072.76/104,972.34 = 42,075.86/x
  3. Step 3: Cross multiply
    76,072.76x = 104,972.34 × 42,075.86
  4. Step 4: Simplify right side
    76,072.76x = 4,416,801,481.71
  5. Step 5: Solve for x
    x = 4,416,801,481.71/76,072.76
  6. Step 6: Final answer
    x = 58,060.22

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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.