Home / 78,910.02-108,894.07-43,100.16

Finding the Fourth Proportional to 78,910.02, 108,894.07 and 43,100.16

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Solution

The fourth proportional to 78,910.02, 108,894.07 and 43,100.16 is: 59,477.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,910.02 : 108,894.07 = 43,100.16 : x
  2. Step 2: Convert to fraction form
    78,910.02/108,894.07 = 43,100.16/x
  3. Step 3: Cross multiply
    78,910.02x = 108,894.07 × 43,100.16
  4. Step 4: Simplify right side
    78,910.02x = 4,693,351,624.55
  5. Step 5: Solve for x
    x = 4,693,351,624.55/78,910.02
  6. Step 6: Final answer
    x = 59,477.26

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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.