Home / 87,303.40-130,625.34-53,449

Finding the Fourth Proportional to 87,303.40, 130,625.34 and 53,449

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Solution

The fourth proportional to 87,303.40, 130,625.34 and 53,449 is: 79,971.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,303.40 : 130,625.34 = 53,449 : x
  2. Step 2: Convert to fraction form
    87,303.40/130,625.34 = 53,449/x
  3. Step 3: Cross multiply
    87,303.40x = 130,625.34 × 53,449
  4. Step 4: Simplify right side
    87,303.40x = 6,981,793,797.66
  5. Step 5: Solve for x
    x = 6,981,793,797.66/87,303.40
  6. Step 6: Final answer
    x = 79,971.61

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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.