Home / 87,658.10-131,159.10-58,133.60

Finding the Fourth Proportional to 87,658.10, 131,159.10 and 58,133.60

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Solution

The fourth proportional to 87,658.10, 131,159.10 and 58,133.60 is: 86,982.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,658.10 : 131,159.10 = 58,133.60 : x
  2. Step 2: Convert to fraction form
    87,658.10/131,159.10 = 58,133.60/x
  3. Step 3: Cross multiply
    87,658.10x = 131,159.10 × 58,133.60
  4. Step 4: Simplify right side
    87,658.10x = 7,624,750,655.76
  5. Step 5: Solve for x
    x = 7,624,750,655.76/87,658.10
  6. Step 6: Final answer
    x = 86,982.84

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1.5x scale

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.