Home / 78,839.64-108,799.12-43,030.52

Finding the Fourth Proportional to 78,839.64, 108,799.12 and 43,030.52

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Solution

The fourth proportional to 78,839.64, 108,799.12 and 43,030.52 is: 59,382.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,839.64 : 108,799.12 = 43,030.52 : x
  2. Step 2: Convert to fraction form
    78,839.64/108,799.12 = 43,030.52/x
  3. Step 3: Cross multiply
    78,839.64x = 108,799.12 × 43,030.52
  4. Step 4: Simplify right side
    78,839.64x = 4,681,682,709.14
  5. Step 5: Solve for x
    x = 4,681,682,709.14/78,839.64
  6. Step 6: Final answer
    x = 59,382.35

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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.