Home / 87,245.13-130,868.51-56,102.25

Finding the Fourth Proportional to 87,245.13, 130,868.51 and 56,102.25

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Solution

The fourth proportional to 87,245.13, 130,868.51 and 56,102.25 is: 84,153.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,245.13 : 130,868.51 = 56,102.25 : x
  2. Step 2: Convert to fraction form
    87,245.13/130,868.51 = 56,102.25/x
  3. Step 3: Cross multiply
    87,245.13x = 130,868.51 × 56,102.25
  4. Step 4: Simplify right side
    87,245.13x = 7,342,017,865.15
  5. Step 5: Solve for x
    x = 7,342,017,865.15/87,245.13
  6. Step 6: Final answer
    x = 84,153.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.