Home / 76,946.88-115,116.60-58,280.76

Finding the Fourth Proportional to 76,946.88, 115,116.60 and 58,280.76

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Solution

The fourth proportional to 76,946.88, 115,116.60 and 58,280.76 is: 87,191.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,946.88 : 115,116.60 = 58,280.76 : x
  2. Step 2: Convert to fraction form
    76,946.88/115,116.60 = 58,280.76/x
  3. Step 3: Cross multiply
    76,946.88x = 115,116.60 × 58,280.76
  4. Step 4: Simplify right side
    76,946.88x = 6,709,082,936.62
  5. Step 5: Solve for x
    x = 6,709,082,936.62/76,946.88
  6. Step 6: Final answer
    x = 87,191.10

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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.