Home / 45,849.13-68,773.93-20,871.71

Finding the Fourth Proportional to 45,849.13, 68,773.93 and 20,871.71

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Solution

The fourth proportional to 45,849.13, 68,773.93 and 20,871.71 is: 31,307.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,849.13 : 68,773.93 = 20,871.71 : x
  2. Step 2: Convert to fraction form
    45,849.13/68,773.93 = 20,871.71/x
  3. Step 3: Cross multiply
    45,849.13x = 68,773.93 × 20,871.71
  4. Step 4: Simplify right side
    45,849.13x = 1,435,429,462.64
  5. Step 5: Solve for x
    x = 1,435,429,462.64/45,849.13
  6. Step 6: Final answer
    x = 31,307.67

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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.