Home / 101,724.70-140,379.40-56,402.71

Finding the Fourth Proportional to 101,724.70, 140,379.40 and 56,402.71

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Solution

The fourth proportional to 101,724.70, 140,379.40 and 56,402.71 is: 77,835.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,724.70 : 140,379.40 = 56,402.71 : x
  2. Step 2: Convert to fraction form
    101,724.70/140,379.40 = 56,402.71/x
  3. Step 3: Cross multiply
    101,724.70x = 140,379.40 × 56,402.71
  4. Step 4: Simplify right side
    101,724.70x = 7,917,777,745.27
  5. Step 5: Solve for x
    x = 7,917,777,745.27/101,724.70
  6. Step 6: Final answer
    x = 77,835.35

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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.