Home / 45,320.34-67,995.03-18,678.80

Finding the Fourth Proportional to 45,320.34, 67,995.03 and 18,678.80

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Solution

The fourth proportional to 45,320.34, 67,995.03 and 18,678.80 is: 28,024.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,320.34 : 67,995.03 = 18,678.80 : x
  2. Step 2: Convert to fraction form
    45,320.34/67,995.03 = 18,678.80/x
  3. Step 3: Cross multiply
    45,320.34x = 67,995.03 × 18,678.80
  4. Step 4: Simplify right side
    45,320.34x = 1,270,065,472.97
  5. Step 5: Solve for x
    x = 1,270,065,472.97/45,320.34
  6. Step 6: Final answer
    x = 28,024.19

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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.