Home / 73,979.44-102,066.64-42,125.76

Finding the Fourth Proportional to 73,979.44, 102,066.64 and 42,125.76

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Solution

The fourth proportional to 73,979.44, 102,066.64 and 42,125.76 is: 58,119.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,979.44 : 102,066.64 = 42,125.76 : x
  2. Step 2: Convert to fraction form
    73,979.44/102,066.64 = 42,125.76/x
  3. Step 3: Cross multiply
    73,979.44x = 102,066.64 × 42,125.76
  4. Step 4: Simplify right side
    73,979.44x = 4,299,634,780.65
  5. Step 5: Solve for x
    x = 4,299,634,780.65/73,979.44
  6. Step 6: Final answer
    x = 58,119.32

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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.