Home / 87,608.18-120,900.80-51,804.36

Finding the Fourth Proportional to 87,608.18, 120,900.80 and 51,804.36

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Solution

The fourth proportional to 87,608.18, 120,900.80 and 51,804.36 is: 71,490.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,608.18 : 120,900.80 = 51,804.36 : x
  2. Step 2: Convert to fraction form
    87,608.18/120,900.80 = 51,804.36/x
  3. Step 3: Cross multiply
    87,608.18x = 120,900.80 × 51,804.36
  4. Step 4: Simplify right side
    87,608.18x = 6,263,188,697.00
  5. Step 5: Solve for x
    x = 6,263,188,697.00/87,608.18
  6. Step 6: Final answer
    x = 71,490.91

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1.5x scale

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.