Home / 69,136.11-103,791.71-42,416.45

Finding the Fourth Proportional to 69,136.11, 103,791.71 and 42,416.45

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Solution

The fourth proportional to 69,136.11, 103,791.71 and 42,416.45 is: 63,678.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,136.11 : 103,791.71 = 42,416.45 : x
  2. Step 2: Convert to fraction form
    69,136.11/103,791.71 = 42,416.45/x
  3. Step 3: Cross multiply
    69,136.11x = 103,791.71 × 42,416.45
  4. Step 4: Simplify right side
    69,136.11x = 4,402,475,146.59
  5. Step 5: Solve for x
    x = 4,402,475,146.59/69,136.11
  6. Step 6: Final answer
    x = 63,678.38

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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.