Home / 78,865.26-108,835.70-43,056.78

Finding the Fourth Proportional to 78,865.26, 108,835.70 and 43,056.78

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Solution

The fourth proportional to 78,865.26, 108,835.70 and 43,056.78 is: 59,419.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,865.26 : 108,835.70 = 43,056.78 : x
  2. Step 2: Convert to fraction form
    78,865.26/108,835.70 = 43,056.78/x
  3. Step 3: Cross multiply
    78,865.26x = 108,835.70 × 43,056.78
  4. Step 4: Simplify right side
    78,865.26x = 4,686,114,898.69
  5. Step 5: Solve for x
    x = 4,686,114,898.69/78,865.26
  6. Step 6: Final answer
    x = 59,419.25

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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.