Home / 101,724.76-140,379.48-56,402.76

Finding the Fourth Proportional to 101,724.76, 140,379.48 and 56,402.76

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Solution

The fourth proportional to 101,724.76, 140,379.48 and 56,402.76 is: 77,835.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,724.76 : 140,379.48 = 56,402.76 : x
  2. Step 2: Convert to fraction form
    101,724.76/140,379.48 = 56,402.76/x
  3. Step 3: Cross multiply
    101,724.76x = 140,379.48 × 56,402.76
  4. Step 4: Simplify right side
    101,724.76x = 7,917,789,461.34
  5. Step 5: Solve for x
    x = 7,917,789,461.34/101,724.76
  6. Step 6: Final answer
    x = 77,835.42

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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.