Home / 87,769.60-121,121.36-47,483.24

Finding the Fourth Proportional to 87,769.60, 121,121.36 and 47,483.24

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Solution

The fourth proportional to 87,769.60, 121,121.36 and 47,483.24 is: 65,526.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,769.60 : 121,121.36 = 47,483.24 : x
  2. Step 2: Convert to fraction form
    87,769.60/121,121.36 = 47,483.24/x
  3. Step 3: Cross multiply
    87,769.60x = 121,121.36 × 47,483.24
  4. Step 4: Simplify right side
    87,769.60x = 5,751,234,000.40
  5. Step 5: Solve for x
    x = 5,751,234,000.40/87,769.60
  6. Step 6: Final answer
    x = 65,526.49

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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.