Home / 66,559.28-99,789.66-31,457.96

Finding the Fourth Proportional to 66,559.28, 99,789.66 and 31,457.96

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Solution

The fourth proportional to 66,559.28, 99,789.66 and 31,457.96 is: 47,163.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,559.28 : 99,789.66 = 31,457.96 : x
  2. Step 2: Convert to fraction form
    66,559.28/99,789.66 = 31,457.96/x
  3. Step 3: Cross multiply
    66,559.28x = 99,789.66 × 31,457.96
  4. Step 4: Simplify right side
    66,559.28x = 3,139,179,132.69
  5. Step 5: Solve for x
    x = 3,139,179,132.69/66,559.28
  6. Step 6: Final answer
    x = 47,163.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.