Home / 45,316.88-67,989.76-19,014.56

Finding the Fourth Proportional to 45,316.88, 67,989.76 and 19,014.56

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Solution

The fourth proportional to 45,316.88, 67,989.76 and 19,014.56 is: 28,527.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,316.88 : 67,989.76 = 19,014.56 : x
  2. Step 2: Convert to fraction form
    45,316.88/67,989.76 = 19,014.56/x
  3. Step 3: Cross multiply
    45,316.88x = 67,989.76 × 19,014.56
  4. Step 4: Simplify right side
    45,316.88x = 1,292,794,983.42
  5. Step 5: Solve for x
    x = 1,292,794,983.42/45,316.88
  6. Step 6: Final answer
    x = 28,527.89

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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.