Home / 88,108.47-121,586.43-47,821.37

Finding the Fourth Proportional to 88,108.47, 121,586.43 and 47,821.37

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Solution

The fourth proportional to 88,108.47, 121,586.43 and 47,821.37 is: 65,991.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,108.47 : 121,586.43 = 47,821.37 : x
  2. Step 2: Convert to fraction form
    88,108.47/121,586.43 = 47,821.37/x
  3. Step 3: Cross multiply
    88,108.47x = 121,586.43 × 47,821.37
  4. Step 4: Simplify right side
    88,108.47x = 5,814,428,823.91
  5. Step 5: Solve for x
    x = 5,814,428,823.91/88,108.47
  6. Step 6: Final answer
    x = 65,991.71

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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.