Home / 101,041.46-139,434-55,721.35

Finding the Fourth Proportional to 101,041.46, 139,434 and 55,721.35

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Solution

The fourth proportional to 101,041.46, 139,434 and 55,721.35 is: 76,893.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,041.46 : 139,434 = 55,721.35 : x
  2. Step 2: Convert to fraction form
    101,041.46/139,434 = 55,721.35/x
  3. Step 3: Cross multiply
    101,041.46x = 139,434 × 55,721.35
  4. Step 4: Simplify right side
    101,041.46x = 7,769,450,715.90
  5. Step 5: Solve for x
    x = 7,769,450,715.90/101,041.46
  6. Step 6: Final answer
    x = 76,893.69

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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.