Home / 101,828.40-140,519.50-56,508.36

Finding the Fourth Proportional to 101,828.40, 140,519.50 and 56,508.36

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Solution

The fourth proportional to 101,828.40, 140,519.50 and 56,508.36 is: 77,979.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,828.40 : 140,519.50 = 56,508.36 : x
  2. Step 2: Convert to fraction form
    101,828.40/140,519.50 = 56,508.36/x
  3. Step 3: Cross multiply
    101,828.40x = 140,519.50 × 56,508.36
  4. Step 4: Simplify right side
    101,828.40x = 7,940,526,493.02
  5. Step 5: Solve for x
    x = 7,940,526,493.02/101,828.40
  6. Step 6: Final answer
    x = 77,979.49

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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.