Home / 78,893.56-108,877.19-48,257.05

Finding the Fourth Proportional to 78,893.56, 108,877.19 and 48,257.05

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Solution

The fourth proportional to 78,893.56, 108,877.19 and 48,257.05 is: 66,597.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,893.56 : 108,877.19 = 48,257.05 : x
  2. Step 2: Convert to fraction form
    78,893.56/108,877.19 = 48,257.05/x
  3. Step 3: Cross multiply
    78,893.56x = 108,877.19 × 48,257.05
  4. Step 4: Simplify right side
    78,893.56x = 5,254,092,001.69
  5. Step 5: Solve for x
    x = 5,254,092,001.69/78,893.56
  6. Step 6: Final answer
    x = 66,597.22

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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.