Home / 51,861.94-77,775.59-20,263.77

Finding the Fourth Proportional to 51,861.94, 77,775.59 and 20,263.77

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Solution

The fourth proportional to 51,861.94, 77,775.59 and 20,263.77 is: 30,388.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,861.94 : 77,775.59 = 20,263.77 : x
  2. Step 2: Convert to fraction form
    51,861.94/77,775.59 = 20,263.77/x
  3. Step 3: Cross multiply
    51,861.94x = 77,775.59 × 20,263.77
  4. Step 4: Simplify right side
    51,861.94x = 1,576,026,718.03
  5. Step 5: Solve for x
    x = 1,576,026,718.03/51,861.94
  6. Step 6: Final answer
    x = 30,388.89

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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.