Home / 71,829.12-99,149.76-51,697.92

Finding the Fourth Proportional to 71,829.12, 99,149.76 and 51,697.92

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Solution

The fourth proportional to 71,829.12, 99,149.76 and 51,697.92 is: 71,361.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,829.12 : 99,149.76 = 51,697.92 : x
  2. Step 2: Convert to fraction form
    71,829.12/99,149.76 = 51,697.92/x
  3. Step 3: Cross multiply
    71,829.12x = 99,149.76 × 51,697.92
  4. Step 4: Simplify right side
    71,829.12x = 5,125,836,360.50
  5. Step 5: Solve for x
    x = 5,125,836,360.50/71,829.12
  6. Step 6: Final answer
    x = 71,361.54

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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.