Home / 87,349.40-131,051.80-31,188.32

Finding the Fourth Proportional to 87,349.40, 131,051.80 and 31,188.32

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Solution

The fourth proportional to 87,349.40, 131,051.80 and 31,188.32 is: 46,792.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,349.40 : 131,051.80 = 31,188.32 : x
  2. Step 2: Convert to fraction form
    87,349.40/131,051.80 = 31,188.32/x
  3. Step 3: Cross multiply
    87,349.40x = 131,051.80 × 31,188.32
  4. Step 4: Simplify right side
    87,349.40x = 4,087,285,474.98
  5. Step 5: Solve for x
    x = 4,087,285,474.98/87,349.40
  6. Step 6: Final answer
    x = 46,792.37

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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.