Home / 70,190.76-105,256.16-40,629

Finding the Fourth Proportional to 70,190.76, 105,256.16 and 40,629

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Solution

The fourth proportional to 70,190.76, 105,256.16 and 40,629 is: 60,926.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,190.76 : 105,256.16 = 40,629 : x
  2. Step 2: Convert to fraction form
    70,190.76/105,256.16 = 40,629/x
  3. Step 3: Cross multiply
    70,190.76x = 105,256.16 × 40,629
  4. Step 4: Simplify right side
    70,190.76x = 4,276,452,524.64
  5. Step 5: Solve for x
    x = 4,276,452,524.64/70,190.76
  6. Step 6: Final answer
    x = 60,926.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.