Home / 88,145.55-121,640.13-47,858.49

Finding the Fourth Proportional to 88,145.55, 121,640.13 and 47,858.49

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Solution

The fourth proportional to 88,145.55, 121,640.13 and 47,858.49 is: 66,044.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,145.55 : 121,640.13 = 47,858.49 : x
  2. Step 2: Convert to fraction form
    88,145.55/121,640.13 = 47,858.49/x
  3. Step 3: Cross multiply
    88,145.55x = 121,640.13 × 47,858.49
  4. Step 4: Simplify right side
    88,145.55x = 5,821,512,945.20
  5. Step 5: Solve for x
    x = 5,821,512,945.20/88,145.55
  6. Step 6: Final answer
    x = 66,044.32

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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.