Home / 66,023.28-91,082.64-39,166.92

Finding the Fourth Proportional to 66,023.28, 91,082.64 and 39,166.92

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Solution

The fourth proportional to 66,023.28, 91,082.64 and 39,166.92 is: 54,032.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,023.28 : 91,082.64 = 39,166.92 : x
  2. Step 2: Convert to fraction form
    66,023.28/91,082.64 = 39,166.92/x
  3. Step 3: Cross multiply
    66,023.28x = 91,082.64 × 39,166.92
  4. Step 4: Simplify right side
    66,023.28x = 3,567,426,474.27
  5. Step 5: Solve for x
    x = 3,567,426,474.27/66,023.28
  6. Step 6: Final answer
    x = 54,032.86

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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.