Home / 74,778.69-103,136.27-47,923.71

Finding the Fourth Proportional to 74,778.69, 103,136.27 and 47,923.71

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Solution

The fourth proportional to 74,778.69, 103,136.27 and 47,923.71 is: 66,097.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,778.69 : 103,136.27 = 47,923.71 : x
  2. Step 2: Convert to fraction form
    74,778.69/103,136.27 = 47,923.71/x
  3. Step 3: Cross multiply
    74,778.69x = 103,136.27 × 47,923.71
  4. Step 4: Simplify right side
    74,778.69x = 4,942,672,454.34
  5. Step 5: Solve for x
    x = 4,942,672,454.34/74,778.69
  6. Step 6: Final answer
    x = 66,097.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.