Home / 99,876.03-137,828-54,553.99

Finding the Fourth Proportional to 99,876.03, 137,828 and 54,553.99

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Solution

The fourth proportional to 99,876.03, 137,828 and 54,553.99 is: 75,284.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,876.03 : 137,828 = 54,553.99 : x
  2. Step 2: Convert to fraction form
    99,876.03/137,828 = 54,553.99/x
  3. Step 3: Cross multiply
    99,876.03x = 137,828 × 54,553.99
  4. Step 4: Simplify right side
    99,876.03x = 7,519,067,333.72
  5. Step 5: Solve for x
    x = 7,519,067,333.72/99,876.03
  6. Step 6: Final answer
    x = 75,284.00

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1.5x scale

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.