Home / 101,017.28-139,399.62-55,075.92

Finding the Fourth Proportional to 101,017.28, 139,399.62 and 55,075.92

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Solution

The fourth proportional to 101,017.28, 139,399.62 and 55,075.92 is: 76,002.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,017.28 : 139,399.62 = 55,075.92 : x
  2. Step 2: Convert to fraction form
    101,017.28/139,399.62 = 55,075.92/x
  3. Step 3: Cross multiply
    101,017.28x = 139,399.62 × 55,075.92
  4. Step 4: Simplify right side
    101,017.28x = 7,677,562,319.15
  5. Step 5: Solve for x
    x = 7,677,562,319.15/101,017.28
  6. Step 6: Final answer
    x = 76,002.47

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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.