Home / 87,675.81-131,529.21-28,501.06

Finding the Fourth Proportional to 87,675.81, 131,529.21 and 28,501.06

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Solution

The fourth proportional to 87,675.81, 131,529.21 and 28,501.06 is: 42,756.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,675.81 : 131,529.21 = 28,501.06 : x
  2. Step 2: Convert to fraction form
    87,675.81/131,529.21 = 28,501.06/x
  3. Step 3: Cross multiply
    87,675.81x = 131,529.21 × 28,501.06
  4. Step 4: Simplify right side
    87,675.81x = 3,748,721,470.26
  5. Step 5: Solve for x
    x = 3,748,721,470.26/87,675.81
  6. Step 6: Final answer
    x = 42,756.62

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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.