Home / 49,721.60-74,668.80-48,166.40

Finding the Fourth Proportional to 49,721.60, 74,668.80 and 48,166.40

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Solution

The fourth proportional to 49,721.60, 74,668.80 and 48,166.40 is: 72,333.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,721.60 : 74,668.80 = 48,166.40 : x
  2. Step 2: Convert to fraction form
    49,721.60/74,668.80 = 48,166.40/x
  3. Step 3: Cross multiply
    49,721.60x = 74,668.80 × 48,166.40
  4. Step 4: Simplify right side
    49,721.60x = 3,596,527,288.32
  5. Step 5: Solve for x
    x = 3,596,527,288.32/49,721.60
  6. Step 6: Final answer
    x = 72,333.30

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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.