Home / 87,902.63-121,303.14-51,603.50

Finding the Fourth Proportional to 87,902.63, 121,303.14 and 51,603.50

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Solution

The fourth proportional to 87,902.63, 121,303.14 and 51,603.50 is: 71,211.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,902.63 : 121,303.14 = 51,603.50 : x
  2. Step 2: Convert to fraction form
    87,902.63/121,303.14 = 51,603.50/x
  3. Step 3: Cross multiply
    87,902.63x = 121,303.14 × 51,603.50
  4. Step 4: Simplify right side
    87,902.63x = 6,259,666,584.99
  5. Step 5: Solve for x
    x = 6,259,666,584.99/87,902.63
  6. Step 6: Final answer
    x = 71,211.37

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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.