Home / 76,858.72-115,285.20-24,271.36

Finding the Fourth Proportional to 76,858.72, 115,285.20 and 24,271.36

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Solution

The fourth proportional to 76,858.72, 115,285.20 and 24,271.36 is: 36,406.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,858.72 : 115,285.20 = 24,271.36 : x
  2. Step 2: Convert to fraction form
    76,858.72/115,285.20 = 24,271.36/x
  3. Step 3: Cross multiply
    76,858.72x = 115,285.20 × 24,271.36
  4. Step 4: Simplify right side
    76,858.72x = 2,798,128,591.87
  5. Step 5: Solve for x
    x = 2,798,128,591.87/76,858.72
  6. Step 6: Final answer
    x = 36,406.13

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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.