Home / 67,077.82-100,485.26-38,938.87

Finding the Fourth Proportional to 67,077.82, 100,485.26 and 38,938.87

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Solution

The fourth proportional to 67,077.82, 100,485.26 and 38,938.87 is: 58,331.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,077.82 : 100,485.26 = 38,938.87 : x
  2. Step 2: Convert to fraction form
    67,077.82/100,485.26 = 38,938.87/x
  3. Step 3: Cross multiply
    67,077.82x = 100,485.26 × 38,938.87
  4. Step 4: Simplify right side
    67,077.82x = 3,912,782,127.50
  5. Step 5: Solve for x
    x = 3,912,782,127.50/67,077.82
  6. Step 6: Final answer
    x = 58,331.98

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1.5x scale

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.