Home / 71,789.28-99,032.40-41,964

Finding the Fourth Proportional to 71,789.28, 99,032.40 and 41,964

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Solution

The fourth proportional to 71,789.28, 99,032.40 and 41,964 is: 57,888.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,789.28 : 99,032.40 = 41,964 : x
  2. Step 2: Convert to fraction form
    71,789.28/99,032.40 = 41,964/x
  3. Step 3: Cross multiply
    71,789.28x = 99,032.40 × 41,964
  4. Step 4: Simplify right side
    71,789.28x = 4,155,795,633.60
  5. Step 5: Solve for x
    x = 4,155,795,633.60/71,789.28
  6. Step 6: Final answer
    x = 57,888.81

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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.