Home / 87,609.34-120,901.06-51,817.06

Finding the Fourth Proportional to 87,609.34, 120,901.06 and 51,817.06

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Solution

The fourth proportional to 87,609.34, 120,901.06 and 51,817.06 is: 71,507.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,609.34 : 120,901.06 = 51,817.06 : x
  2. Step 2: Convert to fraction form
    87,609.34/120,901.06 = 51,817.06/x
  3. Step 3: Cross multiply
    87,609.34x = 120,901.06 × 51,817.06
  4. Step 4: Simplify right side
    87,609.34x = 6,264,737,480.08
  5. Step 5: Solve for x
    x = 6,264,737,480.08/87,609.34
  6. Step 6: Final answer
    x = 71,507.64

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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.