Home / 78,846.24-118,299.60-32,138.40

Finding the Fourth Proportional to 78,846.24, 118,299.60 and 32,138.40

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Solution

The fourth proportional to 78,846.24, 118,299.60 and 32,138.40 is: 48,219.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,846.24 : 118,299.60 = 32,138.40 : x
  2. Step 2: Convert to fraction form
    78,846.24/118,299.60 = 32,138.40/x
  3. Step 3: Cross multiply
    78,846.24x = 118,299.60 × 32,138.40
  4. Step 4: Simplify right side
    78,846.24x = 3,801,959,864.64
  5. Step 5: Solve for x
    x = 3,801,959,864.64/78,846.24
  6. Step 6: Final answer
    x = 48,219.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.