Home / 87,709.54-131,506.47-31,521.46

Finding the Fourth Proportional to 87,709.54, 131,506.47 and 31,521.46

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Solution

The fourth proportional to 87,709.54, 131,506.47 and 31,521.46 is: 47,261.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,709.54 : 131,506.47 = 31,521.46 : x
  2. Step 2: Convert to fraction form
    87,709.54/131,506.47 = 31,521.46/x
  3. Step 3: Cross multiply
    87,709.54x = 131,506.47 × 31,521.46
  4. Step 4: Simplify right side
    87,709.54x = 4,145,275,933.85
  5. Step 5: Solve for x
    x = 4,145,275,933.85/87,709.54
  6. Step 6: Final answer
    x = 47,261.40

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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.