Home / 78,964.35-118,458.82-47,366.98

Finding the Fourth Proportional to 78,964.35, 118,458.82 and 47,366.98

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Solution

The fourth proportional to 78,964.35, 118,458.82 and 47,366.98 is: 71,057.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,964.35 : 118,458.82 = 47,366.98 : x
  2. Step 2: Convert to fraction form
    78,964.35/118,458.82 = 47,366.98/x
  3. Step 3: Cross multiply
    78,964.35x = 118,458.82 × 47,366.98
  4. Step 4: Simplify right side
    78,964.35x = 5,611,036,587.42
  5. Step 5: Solve for x
    x = 5,611,036,587.42/78,964.35
  6. Step 6: Final answer
    x = 71,057.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.