Home / 87,798.58-121,162.04-47,512.34

Finding the Fourth Proportional to 87,798.58, 121,162.04 and 47,512.34

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Solution

The fourth proportional to 87,798.58, 121,162.04 and 47,512.34 is: 65,567.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,798.58 : 121,162.04 = 47,512.34 : x
  2. Step 2: Convert to fraction form
    87,798.58/121,162.04 = 47,512.34/x
  3. Step 3: Cross multiply
    87,798.58x = 121,162.04 × 47,512.34
  4. Step 4: Simplify right side
    87,798.58x = 5,756,691,196.20
  5. Step 5: Solve for x
    x = 5,756,691,196.20/87,798.58
  6. Step 6: Final answer
    x = 65,567.02

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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.