Home / 77,942.59-107,560.41-42,132.29

Finding the Fourth Proportional to 77,942.59, 107,560.41 and 42,132.29

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Solution

The fourth proportional to 77,942.59, 107,560.41 and 42,132.29 is: 58,142.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,942.59 : 107,560.41 = 42,132.29 : x
  2. Step 2: Convert to fraction form
    77,942.59/107,560.41 = 42,132.29/x
  3. Step 3: Cross multiply
    77,942.59x = 107,560.41 × 42,132.29
  4. Step 4: Simplify right side
    77,942.59x = 4,531,765,690.84
  5. Step 5: Solve for x
    x = 4,531,765,690.84/77,942.59
  6. Step 6: Final answer
    x = 58,142.36

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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.