Home / 51,588.87-77,390.19-20,416.83

Finding the Fourth Proportional to 51,588.87, 77,390.19 and 20,416.83

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Solution

The fourth proportional to 51,588.87, 77,390.19 and 20,416.83 is: 30,627.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,588.87 : 77,390.19 = 20,416.83 : x
  2. Step 2: Convert to fraction form
    51,588.87/77,390.19 = 20,416.83/x
  3. Step 3: Cross multiply
    51,588.87x = 77,390.19 × 20,416.83
  4. Step 4: Simplify right side
    51,588.87x = 1,580,062,352.90
  5. Step 5: Solve for x
    x = 1,580,062,352.90/51,588.87
  6. Step 6: Final answer
    x = 30,627.97

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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.