Home / 77,926.64-107,538.50-42,116.54

Finding the Fourth Proportional to 77,926.64, 107,538.50 and 42,116.54

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Solution

The fourth proportional to 77,926.64, 107,538.50 and 42,116.54 is: 58,120.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,926.64 : 107,538.50 = 42,116.54 : x
  2. Step 2: Convert to fraction form
    77,926.64/107,538.50 = 42,116.54/x
  3. Step 3: Cross multiply
    77,926.64x = 107,538.50 × 42,116.54
  4. Step 4: Simplify right side
    77,926.64x = 4,529,149,104.39
  5. Step 5: Solve for x
    x = 4,529,149,104.39/77,926.64
  6. Step 6: Final answer
    x = 58,120.68

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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.