Home / 101,781.15-140,458.83-56,462.11

Finding the Fourth Proportional to 101,781.15, 140,458.83 and 56,462.11

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Solution

The fourth proportional to 101,781.15, 140,458.83 and 56,462.11 is: 77,918.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,781.15 : 140,458.83 = 56,462.11 : x
  2. Step 2: Convert to fraction form
    101,781.15/140,458.83 = 56,462.11/x
  3. Step 3: Cross multiply
    101,781.15x = 140,458.83 × 56,462.11
  4. Step 4: Simplify right side
    101,781.15x = 7,930,601,558.78
  5. Step 5: Solve for x
    x = 7,930,601,558.78/101,781.15
  6. Step 6: Final answer
    x = 77,918.18

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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.