Home / 78,883.08-108,858.21-43,072.83

Finding the Fourth Proportional to 78,883.08, 108,858.21 and 43,072.83

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Solution

The fourth proportional to 78,883.08, 108,858.21 and 43,072.83 is: 59,440.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,883.08 : 108,858.21 = 43,072.83 : x
  2. Step 2: Convert to fraction form
    78,883.08/108,858.21 = 43,072.83/x
  3. Step 3: Cross multiply
    78,883.08x = 108,858.21 × 43,072.83
  4. Step 4: Simplify right side
    78,883.08x = 4,688,831,173.43
  5. Step 5: Solve for x
    x = 4,688,831,173.43/78,883.08
  6. Step 6: Final answer
    x = 59,440.26

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1.5x scale

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.