Home / 76,877.69-115,316.17-24,287.09

Finding the Fourth Proportional to 76,877.69, 115,316.17 and 24,287.09

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Solution

The fourth proportional to 76,877.69, 115,316.17 and 24,287.09 is: 36,430.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,877.69 : 115,316.17 = 24,287.09 : x
  2. Step 2: Convert to fraction form
    76,877.69/115,316.17 = 24,287.09/x
  3. Step 3: Cross multiply
    76,877.69x = 115,316.17 × 24,287.09
  4. Step 4: Simplify right side
    76,877.69x = 2,800,693,561.95
  5. Step 5: Solve for x
    x = 2,800,693,561.95/76,877.69
  6. Step 6: Final answer
    x = 36,430.51

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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.