Home / 87,485.26-131,248.73-28,320.93

Finding the Fourth Proportional to 87,485.26, 131,248.73 and 28,320.93

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Solution

The fourth proportional to 87,485.26, 131,248.73 and 28,320.93 is: 42,488.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,485.26 : 131,248.73 = 28,320.93 : x
  2. Step 2: Convert to fraction form
    87,485.26/131,248.73 = 28,320.93/x
  3. Step 3: Cross multiply
    87,485.26x = 131,248.73 × 28,320.93
  4. Step 4: Simplify right side
    87,485.26x = 3,717,086,094.92
  5. Step 5: Solve for x
    x = 3,717,086,094.92/87,485.26
  6. Step 6: Final answer
    x = 42,488.14

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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.