Home / 78,824.24-118,273.56-39,384.56

Finding the Fourth Proportional to 78,824.24, 118,273.56 and 39,384.56

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Solution

The fourth proportional to 78,824.24, 118,273.56 and 39,384.56 is: 59,095.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,824.24 : 118,273.56 = 39,384.56 : x
  2. Step 2: Convert to fraction form
    78,824.24/118,273.56 = 39,384.56/x
  3. Step 3: Cross multiply
    78,824.24x = 118,273.56 × 39,384.56
  4. Step 4: Simplify right side
    78,824.24x = 4,658,152,120.23
  5. Step 5: Solve for x
    x = 4,658,152,120.23/78,824.24
  6. Step 6: Final answer
    x = 59,095.43

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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.