Home / 87,465-131,226.46-43,122.28

Finding the Fourth Proportional to 87,465, 131,226.46 and 43,122.28

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Solution

The fourth proportional to 87,465, 131,226.46 and 43,122.28 is: 64,697.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,465 : 131,226.46 = 43,122.28 : x
  2. Step 2: Convert to fraction form
    87,465/131,226.46 = 43,122.28/x
  3. Step 3: Cross multiply
    87,465x = 131,226.46 × 43,122.28
  4. Step 4: Simplify right side
    87,465x = 5,658,784,151.53
  5. Step 5: Solve for x
    x = 5,658,784,151.53/87,465
  6. Step 6: Final answer
    x = 64,697.70

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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.