Home / 71,222.36-98,286.36-39,390.08

Finding the Fourth Proportional to 71,222.36, 98,286.36 and 39,390.08

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Solution

The fourth proportional to 71,222.36, 98,286.36 and 39,390.08 is: 54,358.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,222.36 : 98,286.36 = 39,390.08 : x
  2. Step 2: Convert to fraction form
    71,222.36/98,286.36 = 39,390.08/x
  3. Step 3: Cross multiply
    71,222.36x = 98,286.36 × 39,390.08
  4. Step 4: Simplify right side
    71,222.36x = 3,871,507,583.31
  5. Step 5: Solve for x
    x = 3,871,507,583.31/71,222.36
  6. Step 6: Final answer
    x = 54,358.04

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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.