Home / 78,617.16-108,474.78-46,779.84

Finding the Fourth Proportional to 78,617.16, 108,474.78 and 46,779.84

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Solution

The fourth proportional to 78,617.16, 108,474.78 and 46,779.84 is: 64,546.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,617.16 : 108,474.78 = 46,779.84 : x
  2. Step 2: Convert to fraction form
    78,617.16/108,474.78 = 46,779.84/x
  3. Step 3: Cross multiply
    78,617.16x = 108,474.78 × 46,779.84
  4. Step 4: Simplify right side
    78,617.16x = 5,074,432,852.44
  5. Step 5: Solve for x
    x = 5,074,432,852.44/78,617.16
  6. Step 6: Final answer
    x = 64,546.12

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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.