Home / 42,950.14-64,372.34-20,472.64

Finding the Fourth Proportional to 42,950.14, 64,372.34 and 20,472.64

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Solution

The fourth proportional to 42,950.14, 64,372.34 and 20,472.64 is: 30,683.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,950.14 : 64,372.34 = 20,472.64 : x
  2. Step 2: Convert to fraction form
    42,950.14/64,372.34 = 20,472.64/x
  3. Step 3: Cross multiply
    42,950.14x = 64,372.34 × 20,472.64
  4. Step 4: Simplify right side
    42,950.14x = 1,317,871,742.78
  5. Step 5: Solve for x
    x = 1,317,871,742.78/42,950.14
  6. Step 6: Final answer
    x = 30,683.76

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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.