Home / 41,127.40-61,681.86-18,919.42

Finding the Fourth Proportional to 41,127.40, 61,681.86 and 18,919.42

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Solution

The fourth proportional to 41,127.40, 61,681.86 and 18,919.42 is: 28,374.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,127.40 : 61,681.86 = 18,919.42 : x
  2. Step 2: Convert to fraction form
    41,127.40/61,681.86 = 18,919.42/x
  3. Step 3: Cross multiply
    41,127.40x = 61,681.86 × 18,919.42
  4. Step 4: Simplify right side
    41,127.40x = 1,166,985,015.72
  5. Step 5: Solve for x
    x = 1,166,985,015.72/41,127.40
  6. Step 6: Final answer
    x = 28,374.88

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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.