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Finding the Fourth Proportional to 60,711, 91,066.44 and 19,158

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Solution

The fourth proportional to 60,711, 91,066.44 and 19,158 is: 28,736.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,711 : 91,066.44 = 19,158 : x
  2. Step 2: Convert to fraction form
    60,711/91,066.44 = 19,158/x
  3. Step 3: Cross multiply
    60,711x = 91,066.44 × 19,158
  4. Step 4: Simplify right side
    60,711x = 1,744,650,857.52
  5. Step 5: Solve for x
    x = 1,744,650,857.52/60,711
  6. Step 6: Final answer
    x = 28,736.98

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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.