Home / 87,817.51-131,443.42-57,856.49

Finding the Fourth Proportional to 87,817.51, 131,443.42 and 57,856.49

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Solution

The fourth proportional to 87,817.51, 131,443.42 and 57,856.49 is: 86,598.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,817.51 : 131,443.42 = 57,856.49 : x
  2. Step 2: Convert to fraction form
    87,817.51/131,443.42 = 57,856.49/x
  3. Step 3: Cross multiply
    87,817.51x = 131,443.42 × 57,856.49
  4. Step 4: Simplify right side
    87,817.51x = 7,604,854,518.87
  5. Step 5: Solve for x
    x = 7,604,854,518.87/87,817.51
  6. Step 6: Final answer
    x = 86,598.38

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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.