Home / 91,984.36-126,938.22-51,699.76

Finding the Fourth Proportional to 91,984.36, 126,938.22 and 51,699.76

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Solution

The fourth proportional to 91,984.36, 126,938.22 and 51,699.76 is: 71,345.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,984.36 : 126,938.22 = 51,699.76 : x
  2. Step 2: Convert to fraction form
    91,984.36/126,938.22 = 51,699.76/x
  3. Step 3: Cross multiply
    91,984.36x = 126,938.22 × 51,699.76
  4. Step 4: Simplify right side
    91,984.36x = 6,562,675,508.83
  5. Step 5: Solve for x
    x = 6,562,675,508.83/91,984.36
  6. Step 6: Final answer
    x = 71,345.56

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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.