Home / 87,029.44-120,122.40-53,476

Finding the Fourth Proportional to 87,029.44, 120,122.40 and 53,476

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Solution

The fourth proportional to 87,029.44, 120,122.40 and 53,476 is: 73,810.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,029.44 : 120,122.40 = 53,476 : x
  2. Step 2: Convert to fraction form
    87,029.44/120,122.40 = 53,476/x
  3. Step 3: Cross multiply
    87,029.44x = 120,122.40 × 53,476
  4. Step 4: Simplify right side
    87,029.44x = 6,423,665,462.40
  5. Step 5: Solve for x
    x = 6,423,665,462.40/87,029.44
  6. Step 6: Final answer
    x = 73,810.26

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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.