Home / 68,064.55-93,915.31-39,764.77

Finding the Fourth Proportional to 68,064.55, 93,915.31 and 39,764.77

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Solution

The fourth proportional to 68,064.55, 93,915.31 and 39,764.77 is: 54,867.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,064.55 : 93,915.31 = 39,764.77 : x
  2. Step 2: Convert to fraction form
    68,064.55/93,915.31 = 39,764.77/x
  3. Step 3: Cross multiply
    68,064.55x = 93,915.31 × 39,764.77
  4. Step 4: Simplify right side
    68,064.55x = 3,734,520,701.63
  5. Step 5: Solve for x
    x = 3,734,520,701.63/68,064.55
  6. Step 6: Final answer
    x = 54,867.34

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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.