Home / 91,969.29-126,921.36-51,682.92

Finding the Fourth Proportional to 91,969.29, 126,921.36 and 51,682.92

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Solution

The fourth proportional to 91,969.29, 126,921.36 and 51,682.92 is: 71,324.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,969.29 : 126,921.36 = 51,682.92 : x
  2. Step 2: Convert to fraction form
    91,969.29/126,921.36 = 51,682.92/x
  3. Step 3: Cross multiply
    91,969.29x = 126,921.36 × 51,682.92
  4. Step 4: Simplify right side
    91,969.29x = 6,559,666,495.17
  5. Step 5: Solve for x
    x = 6,559,666,495.17/91,969.29
  6. Step 6: Final answer
    x = 71,324.53

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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.