Home / 51,808.09-77,693.10-18,519.13

Finding the Fourth Proportional to 51,808.09, 77,693.10 and 18,519.13

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Solution

The fourth proportional to 51,808.09, 77,693.10 and 18,519.13 is: 27,771.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,808.09 : 77,693.10 = 18,519.13 : x
  2. Step 2: Convert to fraction form
    51,808.09/77,693.10 = 18,519.13/x
  3. Step 3: Cross multiply
    51,808.09x = 77,693.10 × 18,519.13
  4. Step 4: Simplify right side
    51,808.09x = 1,438,808,619.00
  5. Step 5: Solve for x
    x = 1,438,808,619.00/51,808.09
  6. Step 6: Final answer
    x = 27,771.89

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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.