Home / 51,613.84-77,428.45-18,331.11

Finding the Fourth Proportional to 51,613.84, 77,428.45 and 18,331.11

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Solution

The fourth proportional to 51,613.84, 77,428.45 and 18,331.11 is: 27,499.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,613.84 : 77,428.45 = 18,331.11 : x
  2. Step 2: Convert to fraction form
    51,613.84/77,428.45 = 18,331.11/x
  3. Step 3: Cross multiply
    51,613.84x = 77,428.45 × 18,331.11
  4. Step 4: Simplify right side
    51,613.84x = 1,419,349,046.94
  5. Step 5: Solve for x
    x = 1,419,349,046.94/51,613.84
  6. Step 6: Final answer
    x = 27,499.39

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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.