Home / 77,087.94-115,515.27-57,271.02

Finding the Fourth Proportional to 77,087.94, 115,515.27 and 57,271.02

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Solution

The fourth proportional to 77,087.94, 115,515.27 and 57,271.02 is: 85,819.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,087.94 : 115,515.27 = 57,271.02 : x
  2. Step 2: Convert to fraction form
    77,087.94/115,515.27 = 57,271.02/x
  3. Step 3: Cross multiply
    77,087.94x = 115,515.27 × 57,271.02
  4. Step 4: Simplify right side
    77,087.94x = 6,615,677,338.48
  5. Step 5: Solve for x
    x = 6,615,677,338.48/77,087.94
  6. Step 6: Final answer
    x = 85,819.87

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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.