Home / 87,353.40-120,542.46-51,554.64

Finding the Fourth Proportional to 87,353.40, 120,542.46 and 51,554.64

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Solution

The fourth proportional to 87,353.40, 120,542.46 and 51,554.64 is: 71,142.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,353.40 : 120,542.46 = 51,554.64 : x
  2. Step 2: Convert to fraction form
    87,353.40/120,542.46 = 51,554.64/x
  3. Step 3: Cross multiply
    87,353.40x = 120,542.46 × 51,554.64
  4. Step 4: Simplify right side
    87,353.40x = 6,214,523,130.01
  5. Step 5: Solve for x
    x = 6,214,523,130.01/87,353.40
  6. Step 6: Final answer
    x = 71,142.32

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1.5x scale

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.