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Finding the Fourth Proportional to 61,149.66, 91,712.75 and 19,030.27

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Solution

The fourth proportional to 61,149.66, 91,712.75 and 19,030.27 is: 28,541.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,149.66 : 91,712.75 = 19,030.27 : x
  2. Step 2: Convert to fraction form
    61,149.66/91,712.75 = 19,030.27/x
  3. Step 3: Cross multiply
    61,149.66x = 91,712.75 × 19,030.27
  4. Step 4: Simplify right side
    61,149.66x = 1,745,318,213.24
  5. Step 5: Solve for x
    x = 1,745,318,213.24/61,149.66
  6. Step 6: Final answer
    x = 28,541.75

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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.