Home / 76,199.16-105,153.73-42,207.53

Finding the Fourth Proportional to 76,199.16, 105,153.73 and 42,207.53

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Solution

The fourth proportional to 76,199.16, 105,153.73 and 42,207.53 is: 58,245.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,199.16 : 105,153.73 = 42,207.53 : x
  2. Step 2: Convert to fraction form
    76,199.16/105,153.73 = 42,207.53/x
  3. Step 3: Cross multiply
    76,199.16x = 105,153.73 × 42,207.53
  4. Step 4: Simplify right side
    76,199.16x = 4,438,279,469.53
  5. Step 5: Solve for x
    x = 4,438,279,469.53/76,199.16
  6. Step 6: Final answer
    x = 58,245.78

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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.