Home / 76,331.41-105,336.65-42,339.97

Finding the Fourth Proportional to 76,331.41, 105,336.65 and 42,339.97

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Solution

The fourth proportional to 76,331.41, 105,336.65 and 42,339.97 is: 58,428.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,331.41 : 105,336.65 = 42,339.97 : x
  2. Step 2: Convert to fraction form
    76,331.41/105,336.65 = 42,339.97/x
  3. Step 3: Cross multiply
    76,331.41x = 105,336.65 × 42,339.97
  4. Step 4: Simplify right side
    76,331.41x = 4,459,950,245.90
  5. Step 5: Solve for x
    x = 4,459,950,245.90/76,331.41
  6. Step 6: Final answer
    x = 58,428.77

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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.