Home / 78,186.88-107,895.24-46,336.90

Finding the Fourth Proportional to 78,186.88, 107,895.24 and 46,336.90

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Solution

The fourth proportional to 78,186.88, 107,895.24 and 46,336.90 is: 63,943.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,186.88 : 107,895.24 = 46,336.90 : x
  2. Step 2: Convert to fraction form
    78,186.88/107,895.24 = 46,336.90/x
  3. Step 3: Cross multiply
    78,186.88x = 107,895.24 × 46,336.90
  4. Step 4: Simplify right side
    78,186.88x = 4,999,530,946.36
  5. Step 5: Solve for x
    x = 4,999,530,946.36/78,186.88
  6. Step 6: Final answer
    x = 63,943.35

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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.