Home / 45,115.61-67,652.09-13,513.46

Finding the Fourth Proportional to 45,115.61, 67,652.09 and 13,513.46

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Solution

The fourth proportional to 45,115.61, 67,652.09 and 13,513.46 is: 20,263.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,115.61 : 67,652.09 = 13,513.46 : x
  2. Step 2: Convert to fraction form
    45,115.61/67,652.09 = 13,513.46/x
  3. Step 3: Cross multiply
    45,115.61x = 67,652.09 × 13,513.46
  4. Step 4: Simplify right side
    45,115.61x = 914,213,744.56
  5. Step 5: Solve for x
    x = 914,213,744.56/45,115.61
  6. Step 6: Final answer
    x = 20,263.80

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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.