Home / 51,839.08-77,788.86-21,851.49

Finding the Fourth Proportional to 51,839.08, 77,788.86 and 21,851.49

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Solution

The fourth proportional to 51,839.08, 77,788.86 and 21,851.49 is: 32,789.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,839.08 : 77,788.86 = 21,851.49 : x
  2. Step 2: Convert to fraction form
    51,839.08/77,788.86 = 21,851.49/x
  3. Step 3: Cross multiply
    51,839.08x = 77,788.86 × 21,851.49
  4. Step 4: Simplify right side
    51,839.08x = 1,699,802,432.69
  5. Step 5: Solve for x
    x = 1,699,802,432.69/51,839.08
  6. Step 6: Final answer
    x = 32,789.98

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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.