Home / 78,867.36-108,837.12-43,057.38

Finding the Fourth Proportional to 78,867.36, 108,837.12 and 43,057.38

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Solution

The fourth proportional to 78,867.36, 108,837.12 and 43,057.38 is: 59,419.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,867.36 : 108,837.12 = 43,057.38 : x
  2. Step 2: Convert to fraction form
    78,867.36/108,837.12 = 43,057.38/x
  3. Step 3: Cross multiply
    78,867.36x = 108,837.12 × 43,057.38
  4. Step 4: Simplify right side
    78,867.36x = 4,686,241,233.95
  5. Step 5: Solve for x
    x = 4,686,241,233.95/78,867.36
  6. Step 6: Final answer
    x = 59,419.27

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1.5x scale

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.