Home / 61,345.11-92,017.81-18,650.91

Finding the Fourth Proportional to 61,345.11, 92,017.81 and 18,650.91

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Solution

The fourth proportional to 61,345.11, 92,017.81 and 18,650.91 is: 27,976.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,345.11 : 92,017.81 = 18,650.91 : x
  2. Step 2: Convert to fraction form
    61,345.11/92,017.81 = 18,650.91/x
  3. Step 3: Cross multiply
    61,345.11x = 92,017.81 × 18,650.91
  4. Step 4: Simplify right side
    61,345.11x = 1,716,216,299.56
  5. Step 5: Solve for x
    x = 1,716,216,299.56/61,345.11
  6. Step 6: Final answer
    x = 27,976.42

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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.