Home / 76,280.56-114,428.52-20,124.55

Finding the Fourth Proportional to 76,280.56, 114,428.52 and 20,124.55

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Solution

The fourth proportional to 76,280.56, 114,428.52 and 20,124.55 is: 30,188.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,280.56 : 114,428.52 = 20,124.55 : x
  2. Step 2: Convert to fraction form
    76,280.56/114,428.52 = 20,124.55/x
  3. Step 3: Cross multiply
    76,280.56x = 114,428.52 × 20,124.55
  4. Step 4: Simplify right side
    76,280.56x = 2,302,822,472.17
  5. Step 5: Solve for x
    x = 2,302,822,472.17/76,280.56
  6. Step 6: Final answer
    x = 30,188.85

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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.