Home / 91,829.68-126,688.80-53,046.88

Finding the Fourth Proportional to 91,829.68, 126,688.80 and 53,046.88

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Solution

The fourth proportional to 91,829.68, 126,688.80 and 53,046.88 is: 73,183.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,829.68 : 126,688.80 = 53,046.88 : x
  2. Step 2: Convert to fraction form
    91,829.68/126,688.80 = 53,046.88/x
  3. Step 3: Cross multiply
    91,829.68x = 126,688.80 × 53,046.88
  4. Step 4: Simplify right side
    91,829.68x = 6,720,445,570.94
  5. Step 5: Solve for x
    x = 6,720,445,570.94/91,829.68
  6. Step 6: Final answer
    x = 73,183.81

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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.