Home / 76,249.22-105,228.12-42,257

Finding the Fourth Proportional to 76,249.22, 105,228.12 and 42,257

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Solution

The fourth proportional to 76,249.22, 105,228.12 and 42,257 is: 58,316.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,249.22 : 105,228.12 = 42,257 : x
  2. Step 2: Convert to fraction form
    76,249.22/105,228.12 = 42,257/x
  3. Step 3: Cross multiply
    76,249.22x = 105,228.12 × 42,257
  4. Step 4: Simplify right side
    76,249.22x = 4,446,624,666.84
  5. Step 5: Solve for x
    x = 4,446,624,666.84/76,249.22
  6. Step 6: Final answer
    x = 58,316.99

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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.