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Finding the Fourth Proportional to 77,614.53, 107,106.77 and 43,157.88

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Solution

The fourth proportional to 77,614.53, 107,106.77 and 43,157.88 is: 59,557.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,614.53 : 107,106.77 = 43,157.88 : x
  2. Step 2: Convert to fraction form
    77,614.53/107,106.77 = 43,157.88/x
  3. Step 3: Cross multiply
    77,614.53x = 107,106.77 × 43,157.88
  4. Step 4: Simplify right side
    77,614.53x = 4,622,501,126.85
  5. Step 5: Solve for x
    x = 4,622,501,126.85/77,614.53
  6. Step 6: Final answer
    x = 59,557.16

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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.