Home / 87,434.97-120,680.40-51,153.24

Finding the Fourth Proportional to 87,434.97, 120,680.40 and 51,153.24

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Solution

The fourth proportional to 87,434.97, 120,680.40 and 51,153.24 is: 70,603.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,434.97 : 120,680.40 = 51,153.24 : x
  2. Step 2: Convert to fraction form
    87,434.97/120,680.40 = 51,153.24/x
  3. Step 3: Cross multiply
    87,434.97x = 120,680.40 × 51,153.24
  4. Step 4: Simplify right side
    87,434.97x = 6,173,193,464.50
  5. Step 5: Solve for x
    x = 6,173,193,464.50/87,434.97
  6. Step 6: Final answer
    x = 70,603.25

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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.