Home / 87,619.73-120,915.13-47,333.49

Finding the Fourth Proportional to 87,619.73, 120,915.13 and 47,333.49

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Solution

The fourth proportional to 87,619.73, 120,915.13 and 47,333.49 is: 65,320.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,619.73 : 120,915.13 = 47,333.49 : x
  2. Step 2: Convert to fraction form
    87,619.73/120,915.13 = 47,333.49/x
  3. Step 3: Cross multiply
    87,619.73x = 120,915.13 × 47,333.49
  4. Step 4: Simplify right side
    87,619.73x = 5,723,334,953.76
  5. Step 5: Solve for x
    x = 5,723,334,953.76/87,619.73
  6. Step 6: Final answer
    x = 65,320.17

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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.