Home / 78,850.14-108,796.95-45,309.66

Finding the Fourth Proportional to 78,850.14, 108,796.95 and 45,309.66

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Solution

The fourth proportional to 78,850.14, 108,796.95 and 45,309.66 is: 62,518.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,850.14 : 108,796.95 = 45,309.66 : x
  2. Step 2: Convert to fraction form
    78,850.14/108,796.95 = 45,309.66/x
  3. Step 3: Cross multiply
    78,850.14x = 108,796.95 × 45,309.66
  4. Step 4: Simplify right side
    78,850.14x = 4,929,552,813.54
  5. Step 5: Solve for x
    x = 4,929,552,813.54/78,850.14
  6. Step 6: Final answer
    x = 62,518.00

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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.