Home / 87,852.79-131,751.91-31,685.60

Finding the Fourth Proportional to 87,852.79, 131,751.91 and 31,685.60

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Solution

The fourth proportional to 87,852.79, 131,751.91 and 31,685.60 is: 47,518.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,852.79 : 131,751.91 = 31,685.60 : x
  2. Step 2: Convert to fraction form
    87,852.79/131,751.91 = 31,685.60/x
  3. Step 3: Cross multiply
    87,852.79x = 131,751.91 × 31,685.60
  4. Step 4: Simplify right side
    87,852.79x = 4,174,637,581.52
  5. Step 5: Solve for x
    x = 4,174,637,581.52/87,852.79
  6. Step 6: Final answer
    x = 47,518.56

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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.