Home / 84,623.88-126,921.48-39,649.92

Finding the Fourth Proportional to 84,623.88, 126,921.48 and 39,649.92

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Solution

The fourth proportional to 84,623.88, 126,921.48 and 39,649.92 is: 59,468.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,623.88 : 126,921.48 = 39,649.92 : x
  2. Step 2: Convert to fraction form
    84,623.88/126,921.48 = 39,649.92/x
  3. Step 3: Cross multiply
    84,623.88x = 126,921.48 × 39,649.92
  4. Step 4: Simplify right side
    84,623.88x = 5,032,426,528.28
  5. Step 5: Solve for x
    x = 5,032,426,528.28/84,623.88
  6. Step 6: Final answer
    x = 59,468.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.