Home / 87,877.18-131,788.50-31,710.01

Finding the Fourth Proportional to 87,877.18, 131,788.50 and 31,710.01

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Solution

The fourth proportional to 87,877.18, 131,788.50 and 31,710.01 is: 47,555.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,877.18 : 131,788.50 = 31,710.01 : x
  2. Step 2: Convert to fraction form
    87,877.18/131,788.50 = 31,710.01/x
  3. Step 3: Cross multiply
    87,877.18x = 131,788.50 × 31,710.01
  4. Step 4: Simplify right side
    87,877.18x = 4,179,014,652.89
  5. Step 5: Solve for x
    x = 4,179,014,652.89/87,877.18
  6. Step 6: Final answer
    x = 47,555.17

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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.