Home / 45,309.72-67,952.70-20,335.80

Finding the Fourth Proportional to 45,309.72, 67,952.70 and 20,335.80

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Solution

The fourth proportional to 45,309.72, 67,952.70 and 20,335.80 is: 30,498.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,309.72 : 67,952.70 = 20,335.80 : x
  2. Step 2: Convert to fraction form
    45,309.72/67,952.70 = 20,335.80/x
  3. Step 3: Cross multiply
    45,309.72x = 67,952.70 × 20,335.80
  4. Step 4: Simplify right side
    45,309.72x = 1,381,872,516.66
  5. Step 5: Solve for x
    x = 1,381,872,516.66/45,309.72
  6. Step 6: Final answer
    x = 30,498.37

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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.