Home / 62,975.09-86,909.58-34,680.78

Finding the Fourth Proportional to 62,975.09, 86,909.58 and 34,680.78

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Solution

The fourth proportional to 62,975.09, 86,909.58 and 34,680.78 is: 47,861.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,975.09 : 86,909.58 = 34,680.78 : x
  2. Step 2: Convert to fraction form
    62,975.09/86,909.58 = 34,680.78/x
  3. Step 3: Cross multiply
    62,975.09x = 86,909.58 × 34,680.78
  4. Step 4: Simplify right side
    62,975.09x = 3,014,091,415.92
  5. Step 5: Solve for x
    x = 3,014,091,415.92/62,975.09
  6. Step 6: Final answer
    x = 47,861.65

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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.