Home / 87,145.99-120,251.58-48,900.53

Finding the Fourth Proportional to 87,145.99, 120,251.58 and 48,900.53

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Solution

The fourth proportional to 87,145.99, 120,251.58 and 48,900.53 is: 67,477.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,145.99 : 120,251.58 = 48,900.53 : x
  2. Step 2: Convert to fraction form
    87,145.99/120,251.58 = 48,900.53/x
  3. Step 3: Cross multiply
    87,145.99x = 120,251.58 × 48,900.53
  4. Step 4: Simplify right side
    87,145.99x = 5,880,365,995.34
  5. Step 5: Solve for x
    x = 5,880,365,995.34/87,145.99
  6. Step 6: Final answer
    x = 67,477.18

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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.