Home / 87,829.66-131,663.76-31,656.02

Finding the Fourth Proportional to 87,829.66, 131,663.76 and 31,656.02

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Solution

The fourth proportional to 87,829.66, 131,663.76 and 31,656.02 is: 47,454.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,829.66 : 131,663.76 = 31,656.02 : x
  2. Step 2: Convert to fraction form
    87,829.66/131,663.76 = 31,656.02/x
  3. Step 3: Cross multiply
    87,829.66x = 131,663.76 × 31,656.02
  4. Step 4: Simplify right side
    87,829.66x = 4,167,950,619.84
  5. Step 5: Solve for x
    x = 4,167,950,619.84/87,829.66
  6. Step 6: Final answer
    x = 47,454.93

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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.