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Finding the Fourth Proportional to 101,013.77, 139,396.01 and 55,071.65

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Solution

The fourth proportional to 101,013.77, 139,396.01 and 55,071.65 is: 75,997.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,013.77 : 139,396.01 = 55,071.65 : x
  2. Step 2: Convert to fraction form
    101,013.77/139,396.01 = 55,071.65/x
  3. Step 3: Cross multiply
    101,013.77x = 139,396.01 × 55,071.65
  4. Step 4: Simplify right side
    101,013.77x = 7,676,768,033.24
  5. Step 5: Solve for x
    x = 7,676,768,033.24/101,013.77
  6. Step 6: Final answer
    x = 75,997.24

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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.