Home / 87,071.04-120,129.48-48,825

Finding the Fourth Proportional to 87,071.04, 120,129.48 and 48,825

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Solution

The fourth proportional to 87,071.04, 120,129.48 and 48,825 is: 67,362.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,071.04 : 120,129.48 = 48,825 : x
  2. Step 2: Convert to fraction form
    87,071.04/120,129.48 = 48,825/x
  3. Step 3: Cross multiply
    87,071.04x = 120,129.48 × 48,825
  4. Step 4: Simplify right side
    87,071.04x = 5,865,321,861
  5. Step 5: Solve for x
    x = 5,865,321,861/87,071.04
  6. Step 6: Final answer
    x = 67,362.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.