Home / 78,774.12-108,709.29-46,961.37

Finding the Fourth Proportional to 78,774.12, 108,709.29 and 46,961.37

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Solution

The fourth proportional to 78,774.12, 108,709.29 and 46,961.37 is: 64,807.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,774.12 : 108,709.29 = 46,961.37 : x
  2. Step 2: Convert to fraction form
    78,774.12/108,709.29 = 46,961.37/x
  3. Step 3: Cross multiply
    78,774.12x = 108,709.29 × 46,961.37
  4. Step 4: Simplify right side
    78,774.12x = 5,105,137,190.13
  5. Step 5: Solve for x
    x = 5,105,137,190.13/78,774.12
  6. Step 6: Final answer
    x = 64,807.29

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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.