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Finding the Fourth Proportional to 77,182.38, 115,967.34 and 49,114.65

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Solution

The fourth proportional to 77,182.38, 115,967.34 and 49,114.65 is: 73,795.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,182.38 : 115,967.34 = 49,114.65 : x
  2. Step 2: Convert to fraction form
    77,182.38/115,967.34 = 49,114.65/x
  3. Step 3: Cross multiply
    77,182.38x = 115,967.34 × 49,114.65
  4. Step 4: Simplify right side
    77,182.38x = 5,695,695,315.53
  5. Step 5: Solve for x
    x = 5,695,695,315.53/77,182.38
  6. Step 6: Final answer
    x = 73,795.28

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1.5x scale

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.