Home / 67,679.56-93,407.34-39,394.36

Finding the Fourth Proportional to 67,679.56, 93,407.34 and 39,394.36

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Solution

The fourth proportional to 67,679.56, 93,407.34 and 39,394.36 is: 54,369.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,679.56 : 93,407.34 = 39,394.36 : x
  2. Step 2: Convert to fraction form
    67,679.56/93,407.34 = 39,394.36/x
  3. Step 3: Cross multiply
    67,679.56x = 93,407.34 × 39,394.36
  4. Step 4: Simplify right side
    67,679.56x = 3,679,722,378.60
  5. Step 5: Solve for x
    x = 3,679,722,378.60/67,679.56
  6. Step 6: Final answer
    x = 54,369.77

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1.5x scale

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.