Home / 78,818.49-108,772.14-43,010.48

Finding the Fourth Proportional to 78,818.49, 108,772.14 and 43,010.48

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Solution

The fourth proportional to 78,818.49, 108,772.14 and 43,010.48 is: 59,355.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,818.49 : 108,772.14 = 43,010.48 : x
  2. Step 2: Convert to fraction form
    78,818.49/108,772.14 = 43,010.48/x
  3. Step 3: Cross multiply
    78,818.49x = 108,772.14 × 43,010.48
  4. Step 4: Simplify right side
    78,818.49x = 4,678,341,408.17
  5. Step 5: Solve for x
    x = 4,678,341,408.17/78,818.49
  6. Step 6: Final answer
    x = 59,355.89

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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.