Home / 55,103.08-75,937.38-39,969.64

Finding the Fourth Proportional to 55,103.08, 75,937.38 and 39,969.64

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Solution

The fourth proportional to 55,103.08, 75,937.38 and 39,969.64 is: 55,082.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,103.08 : 75,937.38 = 39,969.64 : x
  2. Step 2: Convert to fraction form
    55,103.08/75,937.38 = 39,969.64/x
  3. Step 3: Cross multiply
    55,103.08x = 75,937.38 × 39,969.64
  4. Step 4: Simplify right side
    55,103.08x = 3,035,189,741.14
  5. Step 5: Solve for x
    x = 3,035,189,741.14/55,103.08
  6. Step 6: Final answer
    x = 55,082.03

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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.