Home / 86,972.70-130,471.20-37,052.40

Finding the Fourth Proportional to 86,972.70, 130,471.20 and 37,052.40

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Solution

The fourth proportional to 86,972.70, 130,471.20 and 37,052.40 is: 55,583.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,972.70 : 130,471.20 = 37,052.40 : x
  2. Step 2: Convert to fraction form
    86,972.70/130,471.20 = 37,052.40/x
  3. Step 3: Cross multiply
    86,972.70x = 130,471.20 × 37,052.40
  4. Step 4: Simplify right side
    86,972.70x = 4,834,271,090.88
  5. Step 5: Solve for x
    x = 4,834,271,090.88/86,972.70
  6. Step 6: Final answer
    x = 55,583.78

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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.