Home / 45,157.81-67,739.82-13,566.55

Finding the Fourth Proportional to 45,157.81, 67,739.82 and 13,566.55

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Solution

The fourth proportional to 45,157.81, 67,739.82 and 13,566.55 is: 20,350.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,157.81 : 67,739.82 = 13,566.55 : x
  2. Step 2: Convert to fraction form
    45,157.81/67,739.82 = 13,566.55/x
  3. Step 3: Cross multiply
    45,157.81x = 67,739.82 × 13,566.55
  4. Step 4: Simplify right side
    45,157.81x = 918,995,655.02
  5. Step 5: Solve for x
    x = 918,995,655.02/45,157.81
  6. Step 6: Final answer
    x = 20,350.76

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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.