Home / 76,165.62-105,109.66-42,174.04

Finding the Fourth Proportional to 76,165.62, 105,109.66 and 42,174.04

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Solution

The fourth proportional to 76,165.62, 105,109.66 and 42,174.04 is: 58,200.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,165.62 : 105,109.66 = 42,174.04 : x
  2. Step 2: Convert to fraction form
    76,165.62/105,109.66 = 42,174.04/x
  3. Step 3: Cross multiply
    76,165.62x = 105,109.66 × 42,174.04
  4. Step 4: Simplify right side
    76,165.62x = 4,432,899,347.18
  5. Step 5: Solve for x
    x = 4,432,899,347.18/76,165.62
  6. Step 6: Final answer
    x = 58,200.79

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1.5x scale

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.