Home / 47,139.20-65,048.96-25,919.36

Finding the Fourth Proportional to 47,139.20, 65,048.96 and 25,919.36

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Solution

The fourth proportional to 47,139.20, 65,048.96 and 25,919.36 is: 35,766.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,139.20 : 65,048.96 = 25,919.36 : x
  2. Step 2: Convert to fraction form
    47,139.20/65,048.96 = 25,919.36/x
  3. Step 3: Cross multiply
    47,139.20x = 65,048.96 × 25,919.36
  4. Step 4: Simplify right side
    47,139.20x = 1,686,027,411.87
  5. Step 5: Solve for x
    x = 1,686,027,411.87/47,139.20
  6. Step 6: Final answer
    x = 35,766.99

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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.