Home / 87,877.44-121,271.31-47,591.28

Finding the Fourth Proportional to 87,877.44, 121,271.31 and 47,591.28

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Solution

The fourth proportional to 87,877.44, 121,271.31 and 47,591.28 is: 65,676.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,877.44 : 121,271.31 = 47,591.28 : x
  2. Step 2: Convert to fraction form
    87,877.44/121,271.31 = 47,591.28/x
  3. Step 3: Cross multiply
    87,877.44x = 121,271.31 × 47,591.28
  4. Step 4: Simplify right side
    87,877.44x = 5,771,456,870.18
  5. Step 5: Solve for x
    x = 5,771,456,870.18/87,877.44
  6. Step 6: Final answer
    x = 65,676.21

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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.