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Finding the Fourth Proportional to 60,297.37, 90,459.84 and 20,854.45

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Solution

The fourth proportional to 60,297.37, 90,459.84 and 20,854.45 is: 31,286.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,297.37 : 90,459.84 = 20,854.45 : x
  2. Step 2: Convert to fraction form
    60,297.37/90,459.84 = 20,854.45/x
  3. Step 3: Cross multiply
    60,297.37x = 90,459.84 × 20,854.45
  4. Step 4: Simplify right side
    60,297.37x = 1,886,489,775.42
  5. Step 5: Solve for x
    x = 1,886,489,775.42/60,297.37
  6. Step 6: Final answer
    x = 31,286.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.