Home / 87,933.10-121,347.48-47,647.96

Finding the Fourth Proportional to 87,933.10, 121,347.48 and 47,647.96

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Solution

The fourth proportional to 87,933.10, 121,347.48 and 47,647.96 is: 65,754.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,933.10 : 121,347.48 = 47,647.96 : x
  2. Step 2: Convert to fraction form
    87,933.10/121,347.48 = 47,647.96/x
  3. Step 3: Cross multiply
    87,933.10x = 121,347.48 × 47,647.96
  4. Step 4: Simplify right side
    87,933.10x = 5,781,959,266.40
  5. Step 5: Solve for x
    x = 5,781,959,266.40/87,933.10
  6. Step 6: Final answer
    x = 65,754.07

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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.