Home / 47,912.81-66,118.16-30,017.48

Finding the Fourth Proportional to 47,912.81, 66,118.16 and 30,017.48

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Solution

The fourth proportional to 47,912.81, 66,118.16 and 30,017.48 is: 41,423.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,912.81 : 66,118.16 = 30,017.48 : x
  2. Step 2: Convert to fraction form
    47,912.81/66,118.16 = 30,017.48/x
  3. Step 3: Cross multiply
    47,912.81x = 66,118.16 × 30,017.48
  4. Step 4: Simplify right side
    47,912.81x = 1,984,700,395.35
  5. Step 5: Solve for x
    x = 1,984,700,395.35/47,912.81
  6. Step 6: Final answer
    x = 41,423.17

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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.