Home / 78,869.64-108,852.60-50,159.37

Finding the Fourth Proportional to 78,869.64, 108,852.60 and 50,159.37

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Solution

The fourth proportional to 78,869.64, 108,852.60 and 50,159.37 is: 69,227.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,869.64 : 108,852.60 = 50,159.37 : x
  2. Step 2: Convert to fraction form
    78,869.64/108,852.60 = 50,159.37/x
  3. Step 3: Cross multiply
    78,869.64x = 108,852.60 × 50,159.37
  4. Step 4: Simplify right side
    78,869.64x = 5,459,977,043.80
  5. Step 5: Solve for x
    x = 5,459,977,043.80/78,869.64
  6. Step 6: Final answer
    x = 69,227.87

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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.