Home / 78,837.66-108,795.12-43,027.38

Finding the Fourth Proportional to 78,837.66, 108,795.12 and 43,027.38

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Solution

The fourth proportional to 78,837.66, 108,795.12 and 43,027.38 is: 59,377.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,837.66 : 108,795.12 = 43,027.38 : x
  2. Step 2: Convert to fraction form
    78,837.66/108,795.12 = 43,027.38/x
  3. Step 3: Cross multiply
    78,837.66x = 108,795.12 × 43,027.38
  4. Step 4: Simplify right side
    78,837.66x = 4,681,168,970.39
  5. Step 5: Solve for x
    x = 4,681,168,970.39/78,837.66
  6. Step 6: Final answer
    x = 59,377.32

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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.