Home / 87,548.16-120,811.50-51,741.50

Finding the Fourth Proportional to 87,548.16, 120,811.50 and 51,741.50

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Solution

The fourth proportional to 87,548.16, 120,811.50 and 51,741.50 is: 71,400.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,548.16 : 120,811.50 = 51,741.50 : x
  2. Step 2: Convert to fraction form
    87,548.16/120,811.50 = 51,741.50/x
  3. Step 3: Cross multiply
    87,548.16x = 120,811.50 × 51,741.50
  4. Step 4: Simplify right side
    87,548.16x = 6,250,968,227.25
  5. Step 5: Solve for x
    x = 6,250,968,227.25/87,548.16
  6. Step 6: Final answer
    x = 71,400.34

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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.