Home / 74,302.08-111,459.81-20,994.72

Finding the Fourth Proportional to 74,302.08, 111,459.81 and 20,994.72

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Solution

The fourth proportional to 74,302.08, 111,459.81 and 20,994.72 is: 31,493.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,302.08 : 111,459.81 = 20,994.72 : x
  2. Step 2: Convert to fraction form
    74,302.08/111,459.81 = 20,994.72/x
  3. Step 3: Cross multiply
    74,302.08x = 111,459.81 × 20,994.72
  4. Step 4: Simplify right side
    74,302.08x = 2,340,066,839.93
  5. Step 5: Solve for x
    x = 2,340,066,839.93/74,302.08
  6. Step 6: Final answer
    x = 31,493.96

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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.