Home / 78,739.26-108,677.10-46,461.88

Finding the Fourth Proportional to 78,739.26, 108,677.10 and 46,461.88

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Solution

The fourth proportional to 78,739.26, 108,677.10 and 46,461.88 is: 64,127.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,739.26 : 108,677.10 = 46,461.88 : x
  2. Step 2: Convert to fraction form
    78,739.26/108,677.10 = 46,461.88/x
  3. Step 3: Cross multiply
    78,739.26x = 108,677.10 × 46,461.88
  4. Step 4: Simplify right side
    78,739.26x = 5,049,342,378.95
  5. Step 5: Solve for x
    x = 5,049,342,378.95/78,739.26
  6. Step 6: Final answer
    x = 64,127.38

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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.