Home / 71,020.81-106,527.53-21,101.32

Finding the Fourth Proportional to 71,020.81, 106,527.53 and 21,101.32

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Solution

The fourth proportional to 71,020.81, 106,527.53 and 21,101.32 is: 31,650.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,020.81 : 106,527.53 = 21,101.32 : x
  2. Step 2: Convert to fraction form
    71,020.81/106,527.53 = 21,101.32/x
  3. Step 3: Cross multiply
    71,020.81x = 106,527.53 × 21,101.32
  4. Step 4: Simplify right side
    71,020.81x = 2,247,871,285.77
  5. Step 5: Solve for x
    x = 2,247,871,285.77/71,020.81
  6. Step 6: Final answer
    x = 31,650.88

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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.