Home / 101,011.32-139,396.60-55,691.07

Finding the Fourth Proportional to 101,011.32, 139,396.60 and 55,691.07

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Solution

The fourth proportional to 101,011.32, 139,396.60 and 55,691.07 is: 76,854.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,011.32 : 139,396.60 = 55,691.07 : x
  2. Step 2: Convert to fraction form
    101,011.32/139,396.60 = 55,691.07/x
  3. Step 3: Cross multiply
    101,011.32x = 139,396.60 × 55,691.07
  4. Step 4: Simplify right side
    101,011.32x = 7,763,145,808.36
  5. Step 5: Solve for x
    x = 7,763,145,808.36/101,011.32
  6. Step 6: Final answer
    x = 76,854.22

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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.