Home / 82,730.55-124,280.31-51,163.84

Finding the Fourth Proportional to 82,730.55, 124,280.31 and 51,163.84

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Solution

The fourth proportional to 82,730.55, 124,280.31 and 51,163.84 is: 76,859.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,730.55 : 124,280.31 = 51,163.84 : x
  2. Step 2: Convert to fraction form
    82,730.55/124,280.31 = 51,163.84/x
  3. Step 3: Cross multiply
    82,730.55x = 124,280.31 × 51,163.84
  4. Step 4: Simplify right side
    82,730.55x = 6,358,657,895.99
  5. Step 5: Solve for x
    x = 6,358,657,895.99/82,730.55
  6. Step 6: Final answer
    x = 76,859.85

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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.