Home / 78,840.33-108,798.11-43,030.60

Finding the Fourth Proportional to 78,840.33, 108,798.11 and 43,030.60

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Solution

The fourth proportional to 78,840.33, 108,798.11 and 43,030.60 is: 59,381.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,840.33 : 108,798.11 = 43,030.60 : x
  2. Step 2: Convert to fraction form
    78,840.33/108,798.11 = 43,030.60/x
  3. Step 3: Cross multiply
    78,840.33x = 108,798.11 × 43,030.60
  4. Step 4: Simplify right side
    78,840.33x = 4,681,647,408.18
  5. Step 5: Solve for x
    x = 4,681,647,408.18/78,840.33
  6. Step 6: Final answer
    x = 59,381.38

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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.