Home / 78,878.37-108,852.57-43,069.26

Finding the Fourth Proportional to 78,878.37, 108,852.57 and 43,069.26

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Solution

The fourth proportional to 78,878.37, 108,852.57 and 43,069.26 is: 59,435.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,878.37 : 108,852.57 = 43,069.26 : x
  2. Step 2: Convert to fraction form
    78,878.37/108,852.57 = 43,069.26/x
  3. Step 3: Cross multiply
    78,878.37x = 108,852.57 × 43,069.26
  4. Step 4: Simplify right side
    78,878.37x = 4,688,199,639.00
  5. Step 5: Solve for x
    x = 4,688,199,639.00/78,878.37
  6. Step 6: Final answer
    x = 59,435.81

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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.