Home / 87,309.77-120,392.12-58,966.25

Finding the Fourth Proportional to 87,309.77, 120,392.12 and 58,966.25

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Solution

The fourth proportional to 87,309.77, 120,392.12 and 58,966.25 is: 81,309.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,309.77 : 120,392.12 = 58,966.25 : x
  2. Step 2: Convert to fraction form
    87,309.77/120,392.12 = 58,966.25/x
  3. Step 3: Cross multiply
    87,309.77x = 120,392.12 × 58,966.25
  4. Step 4: Simplify right side
    87,309.77x = 7,099,071,391.41
  5. Step 5: Solve for x
    x = 7,099,071,391.41/87,309.77
  6. Step 6: Final answer
    x = 81,309.02

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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.