Home / 90,616.81-125,053.91-54,813.37

Finding the Fourth Proportional to 90,616.81, 125,053.91 and 54,813.37

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Solution

The fourth proportional to 90,616.81, 125,053.91 and 54,813.37 is: 75,644.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,616.81 : 125,053.91 = 54,813.37 : x
  2. Step 2: Convert to fraction form
    90,616.81/125,053.91 = 54,813.37/x
  3. Step 3: Cross multiply
    90,616.81x = 125,053.91 × 54,813.37
  4. Step 4: Simplify right side
    90,616.81x = 6,854,626,238.78
  5. Step 5: Solve for x
    x = 6,854,626,238.78/90,616.81
  6. Step 6: Final answer
    x = 75,644.09

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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.