Home / 45,159.81-67,742.82-13,568.55

Finding the Fourth Proportional to 45,159.81, 67,742.82 and 13,568.55

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Solution

The fourth proportional to 45,159.81, 67,742.82 and 13,568.55 is: 20,353.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,159.81 : 67,742.82 = 13,568.55 : x
  2. Step 2: Convert to fraction form
    45,159.81/67,742.82 = 13,568.55/x
  3. Step 3: Cross multiply
    45,159.81x = 67,742.82 × 13,568.55
  4. Step 4: Simplify right side
    45,159.81x = 919,171,840.31
  5. Step 5: Solve for x
    x = 919,171,840.31/45,159.81
  6. Step 6: Final answer
    x = 20,353.76

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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.