Home / 78,911.03-108,897.27-43,100.93

Finding the Fourth Proportional to 78,911.03, 108,897.27 and 43,100.93

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Solution

The fourth proportional to 78,911.03, 108,897.27 and 43,100.93 is: 59,479.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,911.03 : 108,897.27 = 43,100.93 : x
  2. Step 2: Convert to fraction form
    78,911.03/108,897.27 = 43,100.93/x
  3. Step 3: Cross multiply
    78,911.03x = 108,897.27 × 43,100.93
  4. Step 4: Simplify right side
    78,911.03x = 4,693,573,611.46
  5. Step 5: Solve for x
    x = 4,693,573,611.46/78,911.03
  6. Step 6: Final answer
    x = 59,479.31

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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.