Home / 77,136.48-106,446.96-43,601.76

Finding the Fourth Proportional to 77,136.48, 106,446.96 and 43,601.76

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Solution

The fourth proportional to 77,136.48, 106,446.96 and 43,601.76 is: 60,169.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,136.48 : 106,446.96 = 43,601.76 : x
  2. Step 2: Convert to fraction form
    77,136.48/106,446.96 = 43,601.76/x
  3. Step 3: Cross multiply
    77,136.48x = 106,446.96 × 43,601.76
  4. Step 4: Simplify right side
    77,136.48x = 4,641,274,802.65
  5. Step 5: Solve for x
    x = 4,641,274,802.65/77,136.48
  6. Step 6: Final answer
    x = 60,169.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.