Home / 51,327.60-76,991.40-18,085.20

Finding the Fourth Proportional to 51,327.60, 76,991.40 and 18,085.20

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Solution

The fourth proportional to 51,327.60, 76,991.40 and 18,085.20 is: 27,127.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,327.60 : 76,991.40 = 18,085.20 : x
  2. Step 2: Convert to fraction form
    51,327.60/76,991.40 = 18,085.20/x
  3. Step 3: Cross multiply
    51,327.60x = 76,991.40 × 18,085.20
  4. Step 4: Simplify right side
    51,327.60x = 1,392,404,867.28
  5. Step 5: Solve for x
    x = 1,392,404,867.28/51,327.60
  6. Step 6: Final answer
    x = 27,127.80

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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.