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Finding the Fourth Proportional to 73,191.03, 100,992.12 and 42,570.90

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Solution

The fourth proportional to 73,191.03, 100,992.12 and 42,570.90 is: 58,741.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,191.03 : 100,992.12 = 42,570.90 : x
  2. Step 2: Convert to fraction form
    73,191.03/100,992.12 = 42,570.90/x
  3. Step 3: Cross multiply
    73,191.03x = 100,992.12 × 42,570.90
  4. Step 4: Simplify right side
    73,191.03x = 4,299,325,441.31
  5. Step 5: Solve for x
    x = 4,299,325,441.31/73,191.03
  6. Step 6: Final answer
    x = 58,741.15

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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.