Home / 87,889.25-121,287.11-47,603.00

Finding the Fourth Proportional to 87,889.25, 121,287.11 and 47,603.00

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Solution

The fourth proportional to 87,889.25, 121,287.11 and 47,603.00 is: 65,692.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,889.25 : 121,287.11 = 47,603.00 : x
  2. Step 2: Convert to fraction form
    87,889.25/121,287.11 = 47,603.00/x
  3. Step 3: Cross multiply
    87,889.25x = 121,287.11 × 47,603.00
  4. Step 4: Simplify right side
    87,889.25x = 5,773,629,690.89
  5. Step 5: Solve for x
    x = 5,773,629,690.89/87,889.25
  6. Step 6: Final answer
    x = 65,692.11

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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.