Home / 65,524.68-90,419.40-38,665.80

Finding the Fourth Proportional to 65,524.68, 90,419.40 and 38,665.80

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Solution

The fourth proportional to 65,524.68, 90,419.40 and 38,665.80 is: 53,356.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,524.68 : 90,419.40 = 38,665.80 : x
  2. Step 2: Convert to fraction form
    65,524.68/90,419.40 = 38,665.80/x
  3. Step 3: Cross multiply
    65,524.68x = 90,419.40 × 38,665.80
  4. Step 4: Simplify right side
    65,524.68x = 3,496,138,436.52
  5. Step 5: Solve for x
    x = 3,496,138,436.52/65,524.68
  6. Step 6: Final answer
    x = 53,356.06

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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.