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Finding the Fourth Proportional to 77,641.65, 116,433.81 and 27,708.39

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Solution

The fourth proportional to 77,641.65, 116,433.81 and 27,708.39 is: 41,552.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,641.65 : 116,433.81 = 27,708.39 : x
  2. Step 2: Convert to fraction form
    77,641.65/116,433.81 = 27,708.39/x
  3. Step 3: Cross multiply
    77,641.65x = 116,433.81 × 27,708.39
  4. Step 4: Simplify right side
    77,641.65x = 3,226,193,416.67
  5. Step 5: Solve for x
    x = 3,226,193,416.67/77,641.65
  6. Step 6: Final answer
    x = 41,552.36

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1.5x scale

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.