Home / 77,820.18-107,387.44-45,992.04

Finding the Fourth Proportional to 77,820.18, 107,387.44 and 45,992.04

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Solution

The fourth proportional to 77,820.18, 107,387.44 and 45,992.04 is: 63,466.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,820.18 : 107,387.44 = 45,992.04 : x
  2. Step 2: Convert to fraction form
    77,820.18/107,387.44 = 45,992.04/x
  3. Step 3: Cross multiply
    77,820.18x = 107,387.44 × 45,992.04
  4. Step 4: Simplify right side
    77,820.18x = 4,938,967,435.98
  5. Step 5: Solve for x
    x = 4,938,967,435.98/77,820.18
  6. Step 6: Final answer
    x = 63,466.41

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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.