Home / 87,361.31-130,989.05-56,989.14

Finding the Fourth Proportional to 87,361.31, 130,989.05 and 56,989.14

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Solution

The fourth proportional to 87,361.31, 130,989.05 and 56,989.14 is: 85,449.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,361.31 : 130,989.05 = 56,989.14 : x
  2. Step 2: Convert to fraction form
    87,361.31/130,989.05 = 56,989.14/x
  3. Step 3: Cross multiply
    87,361.31x = 130,989.05 × 56,989.14
  4. Step 4: Simplify right side
    87,361.31x = 7,464,953,023.97
  5. Step 5: Solve for x
    x = 7,464,953,023.97/87,361.31
  6. Step 6: Final answer
    x = 85,449.19

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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.