Home / 76,579.96-105,680.41-42,587.70

Finding the Fourth Proportional to 76,579.96, 105,680.41 and 42,587.70

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Solution

The fourth proportional to 76,579.96, 105,680.41 and 42,587.70 is: 58,771.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,579.96 : 105,680.41 = 42,587.70 : x
  2. Step 2: Convert to fraction form
    76,579.96/105,680.41 = 42,587.70/x
  3. Step 3: Cross multiply
    76,579.96x = 105,680.41 × 42,587.70
  4. Step 4: Simplify right side
    76,579.96x = 4,500,685,596.96
  5. Step 5: Solve for x
    x = 4,500,685,596.96/76,579.96
  6. Step 6: Final answer
    x = 58,771.06

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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.