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Finding the Fourth Proportional to 60,609.93, 90,920.09 and 18,499.49

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Solution

The fourth proportional to 60,609.93, 90,920.09 and 18,499.49 is: 27,750.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,609.93 : 90,920.09 = 18,499.49 : x
  2. Step 2: Convert to fraction form
    60,609.93/90,920.09 = 18,499.49/x
  3. Step 3: Cross multiply
    60,609.93x = 90,920.09 × 18,499.49
  4. Step 4: Simplify right side
    60,609.93x = 1,681,974,748.66
  5. Step 5: Solve for x
    x = 1,681,974,748.66/60,609.93
  6. Step 6: Final answer
    x = 27,750.81

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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.