Home / 51,443.64-70,972.61-31,292.87

Finding the Fourth Proportional to 51,443.64, 70,972.61 and 31,292.87

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Solution

The fourth proportional to 51,443.64, 70,972.61 and 31,292.87 is: 43,172.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,443.64 : 70,972.61 = 31,292.87 : x
  2. Step 2: Convert to fraction form
    51,443.64/70,972.61 = 31,292.87/x
  3. Step 3: Cross multiply
    51,443.64x = 70,972.61 × 31,292.87
  4. Step 4: Simplify right side
    51,443.64x = 2,220,936,146.96
  5. Step 5: Solve for x
    x = 2,220,936,146.96/51,443.64
  6. Step 6: Final answer
    x = 43,172.22

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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.