Home / 78,905.85-108,888.39-43,096.01

Finding the Fourth Proportional to 78,905.85, 108,888.39 and 43,096.01

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Solution

The fourth proportional to 78,905.85, 108,888.39 and 43,096.01 is: 59,471.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,905.85 : 108,888.39 = 43,096.01 : x
  2. Step 2: Convert to fraction form
    78,905.85/108,888.39 = 43,096.01/x
  3. Step 3: Cross multiply
    78,905.85x = 108,888.39 × 43,096.01
  4. Step 4: Simplify right side
    78,905.85x = 4,692,655,169.82
  5. Step 5: Solve for x
    x = 4,692,655,169.82/78,905.85
  6. Step 6: Final answer
    x = 59,471.57

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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.