Home / 101,011.05-139,391.04-55,069.70

Finding the Fourth Proportional to 101,011.05, 139,391.04 and 55,069.70

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Solution

The fourth proportional to 101,011.05, 139,391.04 and 55,069.70 is: 75,993.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,011.05 : 139,391.04 = 55,069.70 : x
  2. Step 2: Convert to fraction form
    101,011.05/139,391.04 = 55,069.70/x
  3. Step 3: Cross multiply
    101,011.05x = 139,391.04 × 55,069.70
  4. Step 4: Simplify right side
    101,011.05x = 7,676,222,058.53
  5. Step 5: Solve for x
    x = 7,676,222,058.53/101,011.05
  6. Step 6: Final answer
    x = 75,993.88

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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.