Home / 76,257.08-105,234.70-42,723.32

Finding the Fourth Proportional to 76,257.08, 105,234.70 and 42,723.32

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Solution

The fourth proportional to 76,257.08, 105,234.70 and 42,723.32 is: 58,958.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,257.08 : 105,234.70 = 42,723.32 : x
  2. Step 2: Convert to fraction form
    76,257.08/105,234.70 = 42,723.32/x
  3. Step 3: Cross multiply
    76,257.08x = 105,234.70 × 42,723.32
  4. Step 4: Simplify right side
    76,257.08x = 4,495,975,763.20
  5. Step 5: Solve for x
    x = 4,495,975,763.20/76,257.08
  6. Step 6: Final answer
    x = 58,958.14

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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.