Home / 87,770.12-121,122.60-47,483.93

Finding the Fourth Proportional to 87,770.12, 121,122.60 and 47,483.93

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Solution

The fourth proportional to 87,770.12, 121,122.60 and 47,483.93 is: 65,527.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,770.12 : 121,122.60 = 47,483.93 : x
  2. Step 2: Convert to fraction form
    87,770.12/121,122.60 = 47,483.93/x
  3. Step 3: Cross multiply
    87,770.12x = 121,122.60 × 47,483.93
  4. Step 4: Simplify right side
    87,770.12x = 5,751,377,059.82
  5. Step 5: Solve for x
    x = 5,751,377,059.82/87,770.12
  6. Step 6: Final answer
    x = 65,527.73

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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.