Home / 61,040.68-91,567.02-18,919

Finding the Fourth Proportional to 61,040.68, 91,567.02 and 18,919

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Solution

The fourth proportional to 61,040.68, 91,567.02 and 18,919 is: 28,380.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,040.68 : 91,567.02 = 18,919 : x
  2. Step 2: Convert to fraction form
    61,040.68/91,567.02 = 18,919/x
  3. Step 3: Cross multiply
    61,040.68x = 91,567.02 × 18,919
  4. Step 4: Simplify right side
    61,040.68x = 1,732,356,451.38
  5. Step 5: Solve for x
    x = 1,732,356,451.38/61,040.68
  6. Step 6: Final answer
    x = 28,380.36

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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.