Home / 78,509.96-117,762.15-22,350.36

Finding the Fourth Proportional to 78,509.96, 117,762.15 and 22,350.36

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Solution

The fourth proportional to 78,509.96, 117,762.15 and 22,350.36 is: 33,524.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,509.96 : 117,762.15 = 22,350.36 : x
  2. Step 2: Convert to fraction form
    78,509.96/117,762.15 = 22,350.36/x
  3. Step 3: Cross multiply
    78,509.96x = 117,762.15 × 22,350.36
  4. Step 4: Simplify right side
    78,509.96x = 2,632,026,972.30
  5. Step 5: Solve for x
    x = 2,632,026,972.30/78,509.96
  6. Step 6: Final answer
    x = 33,524.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.