Home / 87,953.47-121,372.54-47,666.37

Finding the Fourth Proportional to 87,953.47, 121,372.54 and 47,666.37

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Solution

The fourth proportional to 87,953.47, 121,372.54 and 47,666.37 is: 65,777.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,953.47 : 121,372.54 = 47,666.37 : x
  2. Step 2: Convert to fraction form
    87,953.47/121,372.54 = 47,666.37/x
  3. Step 3: Cross multiply
    87,953.47x = 121,372.54 × 47,666.37
  4. Step 4: Simplify right side
    87,953.47x = 5,785,388,034.43
  5. Step 5: Solve for x
    x = 5,785,388,034.43/87,953.47
  6. Step 6: Final answer
    x = 65,777.83

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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.