Home / 87,448.40-131,176.70-28,288.70

Finding the Fourth Proportional to 87,448.40, 131,176.70 and 28,288.70

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Solution

The fourth proportional to 87,448.40, 131,176.70 and 28,288.70 is: 42,434.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,448.40 : 131,176.70 = 28,288.70 : x
  2. Step 2: Convert to fraction form
    87,448.40/131,176.70 = 28,288.70/x
  3. Step 3: Cross multiply
    87,448.40x = 131,176.70 × 28,288.70
  4. Step 4: Simplify right side
    87,448.40x = 3,710,818,113.96
  5. Step 5: Solve for x
    x = 3,710,818,113.96/87,448.40
  6. Step 6: Final answer
    x = 42,434.37

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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.