Home / 74,286.69-102,515.94-42,456.66

Finding the Fourth Proportional to 74,286.69, 102,515.94 and 42,456.66

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Solution

The fourth proportional to 74,286.69, 102,515.94 and 42,456.66 is: 58,590.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,286.69 : 102,515.94 = 42,456.66 : x
  2. Step 2: Convert to fraction form
    74,286.69/102,515.94 = 42,456.66/x
  3. Step 3: Cross multiply
    74,286.69x = 102,515.94 × 42,456.66
  4. Step 4: Simplify right side
    74,286.69x = 4,352,484,409.16
  5. Step 5: Solve for x
    x = 4,352,484,409.16/74,286.69
  6. Step 6: Final answer
    x = 58,590.37

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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.