Home / 52,209.04-78,313.20-12,766.72

Finding the Fourth Proportional to 52,209.04, 78,313.20 and 12,766.72

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Solution

The fourth proportional to 52,209.04, 78,313.20 and 12,766.72 is: 19,149.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,209.04 : 78,313.20 = 12,766.72 : x
  2. Step 2: Convert to fraction form
    52,209.04/78,313.20 = 12,766.72/x
  3. Step 3: Cross multiply
    52,209.04x = 78,313.20 × 12,766.72
  4. Step 4: Simplify right side
    52,209.04x = 999,802,696.70
  5. Step 5: Solve for x
    x = 999,802,696.70/52,209.04
  6. Step 6: Final answer
    x = 19,149.99

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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.