Home / 87,623.03-120,840.39-57,397.32

Finding the Fourth Proportional to 87,623.03, 120,840.39 and 57,397.32

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Solution

The fourth proportional to 87,623.03, 120,840.39 and 57,397.32 is: 79,156.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,623.03 : 120,840.39 = 57,397.32 : x
  2. Step 2: Convert to fraction form
    87,623.03/120,840.39 = 57,397.32/x
  3. Step 3: Cross multiply
    87,623.03x = 120,840.39 × 57,397.32
  4. Step 4: Simplify right side
    87,623.03x = 6,935,914,533.75
  5. Step 5: Solve for x
    x = 6,935,914,533.75/87,623.03
  6. Step 6: Final answer
    x = 79,156.30

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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.