Home / 90,665.66-125,082.80-52,418.21

Finding the Fourth Proportional to 90,665.66, 125,082.80 and 52,418.21

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Solution

The fourth proportional to 90,665.66, 125,082.80 and 52,418.21 is: 72,316.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,665.66 : 125,082.80 = 52,418.21 : x
  2. Step 2: Convert to fraction form
    90,665.66/125,082.80 = 52,418.21/x
  3. Step 3: Cross multiply
    90,665.66x = 125,082.80 × 52,418.21
  4. Step 4: Simplify right side
    90,665.66x = 6,556,615,786.85
  5. Step 5: Solve for x
    x = 6,556,615,786.85/90,665.66
  6. Step 6: Final answer
    x = 72,316.42

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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.