Home / 87,910.47-121,315.95-47,625.02

Finding the Fourth Proportional to 87,910.47, 121,315.95 and 47,625.02

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Solution

The fourth proportional to 87,910.47, 121,315.95 and 47,625.02 is: 65,722.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,910.47 : 121,315.95 = 47,625.02 : x
  2. Step 2: Convert to fraction form
    87,910.47/121,315.95 = 47,625.02/x
  3. Step 3: Cross multiply
    87,910.47x = 121,315.95 × 47,625.02
  4. Step 4: Simplify right side
    87,910.47x = 5,777,673,938.49
  5. Step 5: Solve for x
    x = 5,777,673,938.49/87,910.47
  6. Step 6: Final answer
    x = 65,722.25

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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.