Home / 39,750.63-54,877.20-30,656.10

Finding the Fourth Proportional to 39,750.63, 54,877.20 and 30,656.10

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Solution

The fourth proportional to 39,750.63, 54,877.20 and 30,656.10 is: 42,321.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,750.63 : 54,877.20 = 30,656.10 : x
  2. Step 2: Convert to fraction form
    39,750.63/54,877.20 = 30,656.10/x
  3. Step 3: Cross multiply
    39,750.63x = 54,877.20 × 30,656.10
  4. Step 4: Simplify right side
    39,750.63x = 1,682,320,930.92
  5. Step 5: Solve for x
    x = 1,682,320,930.92/39,750.63
  6. Step 6: Final answer
    x = 42,321.87

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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.