Home / 65,982.31-90,983.36-49,018.02

Finding the Fourth Proportional to 65,982.31, 90,983.36 and 49,018.02

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Solution

The fourth proportional to 65,982.31, 90,983.36 and 49,018.02 is: 67,591.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,982.31 : 90,983.36 = 49,018.02 : x
  2. Step 2: Convert to fraction form
    65,982.31/90,983.36 = 49,018.02/x
  3. Step 3: Cross multiply
    65,982.31x = 90,983.36 × 49,018.02
  4. Step 4: Simplify right side
    65,982.31x = 4,459,824,315.42
  5. Step 5: Solve for x
    x = 4,459,824,315.42/65,982.31
  6. Step 6: Final answer
    x = 67,591.21

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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.