Home / 78,846.40-118,227.99-34,421.14

Finding the Fourth Proportional to 78,846.40, 118,227.99 and 34,421.14

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Solution

The fourth proportional to 78,846.40, 118,227.99 and 34,421.14 is: 51,613.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,846.40 : 118,227.99 = 34,421.14 : x
  2. Step 2: Convert to fraction form
    78,846.40/118,227.99 = 34,421.14/x
  3. Step 3: Cross multiply
    78,846.40x = 118,227.99 × 34,421.14
  4. Step 4: Simplify right side
    78,846.40x = 4,069,542,195.71
  5. Step 5: Solve for x
    x = 4,069,542,195.71/78,846.40
  6. Step 6: Final answer
    x = 51,613.54

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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.